user: You are a structured reasoning expert tasked with solving problems step by step. 
You first think about the reasoning process in the mind and then provide the answer. The reasoning process and answer should be enclosed within <think> </think> and <answer> </answer> tags, respectively, i.e., <think> reasoning process here </think> <answer> answer here </answer>. 
Given a question and the associated knowledge graph triplets (entity, relation, entity), you are asked to answer the question with these triplets and your own knowledge. 
You can break down the original question into several sub-questions and explore the given knowledge graph to solve them step-by-step. If there are multiple possible answers, choose one as the final answer. 
After thinking, when you finally reach a conclusion, clearly state the answer within <answer> </answer> tags, i.e., <answer> answer here </answer>. 
Question: when did the christchurch quake happened? 
Knowledge Triplets: Christchurch, location.statistical_region.population, g.1jmcbkjpx
Hotel Grand Chancellor, Christchurch, common.topic.image, Grand Chancellor-2
St Luke's Church, Christchurch, common.topic.notable_for, g.1yl5rvxtg
2008 Show Me Shorts Film Festival, time.event.locations, Christchurch
Lincoln, location.location.containedby, Christchurch
2006 Progressive Enterprises dispute, time.event.locations, Christchurch
Christ's College, Christchurch, location.location.containedby, New Zealand
Christchurch Arts Centre, travel.tourist_attraction.near_travel_destination, Christchurch
Christchurch City Council, government.governmental_body.jurisdiction, Christchurch
Christchurch, travel.travel_destination.tourist_attractions, Cathedral Square, Christchurch
Burnside High School, location.location.nearby_airports, Christchurch International Airport
Middleton Grange School, location.location.containedby, Christchurch
Earthquake, architecture.destruction_method.structures_destroyed, Port-au-Prince City Hall
2011 Show Me Shorts Film Festival, time.event.locations, Christchurch
Disaster, freebase.type_profile.kind, Definition
Christchurch, government.governmental_jurisdiction.governing_officials, m.043zyvg
Christchurch Botanic Gardens, travel.tourist_attraction.near_travel_destination, Christchurch
2011 Christchurch earthquake, event.disaster.structures_damaged, St Luke's Church, Christchurch
Earthquake, people.cause_of_death.parent_cause_of_death, Accident
Christchurch, business.employer.employees, m.0whrwv8
2006 Documentary Edge Film Festival, time.event.locations, Christchurch
Earthquake, book.book_subject.works, Earthquakes in Human History: The Far-Reaching Effects of Seismic Disruptions
ChristChurch Cathedral, Christchurch, common.topic.webpage, m.09hy71f
2011 Christchurch earthquake, event.disaster.notable_structures_damaged, St Luke's Church, Christchurch
2011 Christchurch earthquake, event.disaster.notable_structures_damaged, Sydenham Heritage Church
Carlton Hotel, Christchurch, common.topic.article, m.0gky666
2011 Christchurch earthquake, event.disaster.notable_structures_damaged, Lyttelton Timeball Station
m.0k1q3d2, government.government_position_held.jurisdiction_of_office, Christchurch
Disaster, type.type.properties, Total fatalities
Event, type.type.domain, Event
Cathedral of the Blessed Sacrament, Christchurch, common.topic.image, ChristchurchBasilica gobeirne
Christchurch, travel.travel_destination.tourist_attractions, Ferrymead Heritage Park
Christchurch, location.location.contains, Pacific Tower, Christchurch
2011 Christchurch earthquake, event.disaster.notable_structures_damaged, Canterbury Provincial Council Buildings
ChristChurch Cathedral, Christchurch, architecture.structure.architect, George Gilbert Scott
Earthquake, architecture.destruction_method.structures_destroyed, Cathedral of Our Lady of the Assumption, Port-au-Prince
Christchurch International Airport, aviation.airport.serves, Christchurch
2011 Christchurch earthquake, event.disaster.type_of_disaster, Earthquake
2011 Christchurch earthquake, common.topic.article, m.0gg9kfw
Christchurch Hospital, event.disaster_affected_structure.damaged_by_disasters, 2011 Christchurch earthquake
Christchurch, periodicals.newspaper_circulation_area.newspapers, National Business Review
Christchurch, location.location.events, 2010 Show Me Shorts Film Festival
Canterbury University College of Business and Economics, main campus, location.location.containedby, New Zealand
Catholic Cathedral College, education.educational_institution.campuses, Catholic Cathedral College
Benjamin Mountfort, architecture.architect.structures_designed, Canterbury Museum, Christchurch
Christchurch, location.location.events, 2006 Documentary Edge Film Festival
Benjamin Mountfort, people.deceased_person.place_of_death, Christchurch
Christchurch, periodicals.newspaper_circulation_area.newspapers, The Star
St Margaret's College, Christchurch, location.location.containedby, Christchurch
Christchurch, common.image.appears_in_topic_gallery, Christchurch
Christchurch Polytechnic Institute of Technology, education.educational_institution.campuses, Christchurch Polytechnic Institute of Technology
Christchurch, location.location.nearby_airports, Forest Field Aerodrome
Christchurch, location.location.contains, College House
Christchurch, government.governmental_jurisdiction.governing_officials, m.0k1q3d2
Christchurch, location.location.events, 2006 Progressive Enterprises dispute
Christchurch, location.location.events, Kiwi PyCon 2009
Queen Elizabeth II Park, location.location.containedby, Christchurch
CTV Building, event.disaster_affected_structure.destroyed_by_disaster, 2011 Christchurch earthquake
Christchurch, travel.travel_destination.tourist_attractions, Christchurch Arts Centre
Christchurch Hospital, common.topic.notable_for, g.125621_d8
Christchurch, sports.sports_team_location.teams, Canterbury Rams
m.0j6m3jn, user.robert.earthquakes.earthquake_magnitude.earthquake, 2011 Christchurch earthquake
Canterbury Rams, sports.sports_team.location, Christchurch
Christchurch, location.statistical_region.population, g.11btt59cj5
City Mall, Christchurch, event.disaster_affected_structure.destroyed_by_disaster, 2011 Christchurch earthquake
Canterbury Museum, Christchurch, architecture.structure.architect, Benjamin Mountfort
2011 Christchurch earthquake, event.disaster.structures_damaged, Hotel Grand Chancellor, Christchurch
Christchurch City Council, common.topic.image, OxfordTerraceChristchurch13June2008
Lyttelton Timeball Station, travel.tourist_attraction.near_travel_destination, Christchurch
Christchurch, location.location.contains, Catholic Cathedral College
Christchurch Hospital, location.location.geolocation, m.0clpg8s
Christchurch, location.location.contains, Lincoln
Christchurch, common.topic.image, OxfordTerraceChristchurch13June2008
Disaster, type.type.properties, Structures damaged
Canterbury, location.location.contains, St Margaret's College, Christchurch
2011 Christchurch earthquake, event.disaster.notable_structures_damaged, St Paul's Church, Christchurch
Disaster, type.type.expected_by, Killed in disaster
Christchurch, location.statistical_region.population, m.0t5xh3w
Christchurch, travel.travel_destination.tourist_attractions, Air Force Museum of New Zealand
Mausoleum at Halicarnassus, architecture.structure.destroyed_by, Earthquake
Christchurch, location.statistical_region.population, m.04m1l8w
Christchurch, common.topic.webpage, m.04d56f_
Event, freebase.type_profile.kind, Definition
Disaster, type.type.properties, Type of disaster
Christchurch, common.topic.notable_for, g.1259jp4z8
Christchurch, location.location.contains, Orana Wildlife Park
Christchurch, location.location.contains, University of Canterbury
Christchurch, location.location.contains, Linwood College
Christchurch International Airport, aviation.airport.serves, University of Canterbury
Marian College, Christchurch, education.educational_institution.campuses, Marian College, Christchurch
Christchurch, location.location.nearby_airports, Christchurch International Airport
Christchurch, location.statistical_region.population, g.11bcdlk0kf
Christchurch, location.location.containedby, New Zealand
Disaster, type.type.domain, Event
Carlton Hotel, Christchurch, common.topic.image, Carlton Hotel is open
Christchurch, travel.travel_destination.tourist_attractions, International Antarctic Centre
Realm of New Zealand, location.location.contains, Canterbury
Earthquake, common.topic.webpage, m.09ysm2x
Ecumenical Institute for Distance Theological Studies, location.location.containedby, Christchurch
Earthquake, architecture.destruction_method.structures_destroyed, Praça do Comércio
Christchurch Casino, location.location.containedby, Christchurch
Forest Field Aerodrome, aviation.airport.serves, Christchurch
Christchurch, location.location.contains, Dux Live
Benjamin Mountfort, architecture.architect.structures_designed, Christchurch Arts Centre
m.09hy71f, common.webpage.topic, ChristChurch Cathedral, Christchurch
Canterbury, location.location.contains, Marian College, Christchurch
Disaster-affected structure, type.type.properties, Destroyed by disaster
Christchurch, location.statistical_region.population, g.1jmcbfy1z
Pacific Tower, Christchurch, location.location.containedby, Christchurch
Pacific Tower, Christchurch, common.topic.notable_types, Building
National Business Review, book.newspaper.circulation_areas, Christchurch
Christchurch, location.location.contains, Avon River
Music as a Weapon Tour: Australia and New Zealand (2011), time.event.locations, Christchurch
ChristChurch Cathedral, Christchurch, location.location.containedby, Christchurch
ChristChurch Cathedral, Christchurch, common.topic.image, ChristChurchCathedral1 gobeirne
Disaster, freebase.type_profile.strict_included_types, Topic
Canterbury, location.location.containedby, Realm of New Zealand
Hotel Grand Chancellor, Christchurch, event.disaster_affected_structure.damaged_by_disasters, 2011 Christchurch earthquake
St Margaret's College, Christchurch, education.educational_institution.campuses, St Margaret's College, Christchurch
St Margaret's College, Christchurch, education.educational_institution_campus.educational_institution, St Margaret's College, Christchurch
Disaster, freebase.type_hints.included_types, Event
Christchurch Arts Centre, architecture.structure.architect, Benjamin Mountfort
Linwood, location.location.containedby, Christchurch
Benjamin Mountfort, architecture.architect.structures_designed, Cathedral of the Blessed Sacrament, Christchurch
Christchurch, location.location.events, 2011 IPC Athletics World Championships
Christchurch, location.location.contains, Hollywood Theatre
2014 Out Takes: A Reel Queer Film Festival, time.event.locations, Christchurch
Christchurch, location.location.events, 2011 Show Me Shorts Film Festival
Sugarloaf, location.location.containedby, Christchurch
Mount Pleasant, location.location.containedby, Christchurch
Villa Maria College, Christchurch, location.location.containedby, Canterbury
m.09x71mb, common.webpage.topic, Earthquake
Disaster, type.type.expected_by, Survived disasters
Cathedral of the Blessed Sacrament, Christchurch, location.location.geolocation, m.0d061ps
OxfordTerraceChristchurch13June2008, common.image.appears_in_topic_gallery, Christchurch
Earthquake, architecture.destruction_method.structures_destroyed, Church os S Domingos, Rossio
Christchurch Arts Centre, common.topic.notable_types, Tourist attraction
2011 Christchurch earthquake, time.event.start_date, 2011-02-22
TranzAlpine, travel.tourist_attraction.near_travel_destination, Christchurch
Christchurch, location.location.events, 2008 Show Me Shorts Film Festival
Christchurch, common.topic.notable_types, City/Town/Village
Earthquake, architecture.destruction_method.structures_destroyed, Carlton Bloc
2011 Christchurch earthquake, event.disaster.notable_structures_damaged, Oxford Terrace Baptist Church
Villa Maria College, Christchurch, location.location.containedby, Christchurch
Christchurch, location.location.events, Ballantyne's fire
ChristChurch Cathedral, Christchurch, base.schemastaging.context_name.pronunciation, g.125_qtycw
Cathedral of the Blessed Sacrament, Christchurch, common.topic.article, m.043l3yy
Earthquake, common.topic.webpage, m.09x793z
ChristChurch Cathedral, Christchurch, location.location.geolocation, m.02_rt37
Christchurch city, common.image.appears_in_topic_gallery, Christchurch
Willowbank Wildlife Reserve, Christchurch, common.topic.notable_types, Tourist attraction
Villa Maria College, Christchurch, location.location.containedby, New Zealand
The Press, book.newspaper.circulation_areas, Christchurch
Disaster, type.type.properties, Victims
Rochester and Rutherford Hall, location.location.containedby, Christchurch
Egyptian Association of Canterbury, location.location.containedby, New Zealand
Disaster, freebase.type_hints.included_types, Topic
Christchurch, location.location.contains, Christchurch Casino
Christchurch, location.location.contains, Hagley Park
City Mall, Christchurch, common.topic.notable_for, g.1z2sq4v30
Christchurch, travel.travel_destination.tourist_attractions, TranzAlpine
Christchurch International Airport, aviation.airport.serves, Burnside High School
Christchurch, location.statistical_region.population, g.1jmcbfmc3
Christchurch, location.location.contains, ChristChurch Cathedral, Christchurch
Air Force Museum of New Zealand, travel.tourist_attraction.near_travel_destination, Christchurch
Christchurch, location.location.contains, Cathedral Square, Christchurch
South Island, location.location.contains, Christchurch International Airport
Christchurch, location.location.events, 1997 Out Takes: A Reel Queer Film Festival
Christchurch, location.location.contains, Merivale
Earthquake, common.topic.notable_types, Disaster type
College House, location.location.containedby, Christchurch
m.0gwy1bj, dataworld.gardening_hint.last_referenced_by, 2011 Christchurch earthquake
Christchurch Hospital, common.topic.notable_types, Hospital
Carlton Hotel, Christchurch, location.location.geolocation, m.0wmf63j
Disaster-affected structure, type.type.properties, Damaged by disasters
2011 Christchurch earthquake, common.topic.notable_types, Disaster
2010 Show Me Shorts Film Festival, time.event.locations, Christchurch
Christchurch, government.governmental_jurisdiction.government_bodies, Christchurch City Council
Lancaster Park, location.location.containedby, Christchurch
City Mall, Christchurch, common.topic.article, m.0h956t8
Cathedral Square 2402, common.image.appears_in_topic_gallery, 2011 Christchurch earthquake
Christchurch, location.statistical_region.population, g.1jmcbgjts
ChristChurch Cathedral, Christchurch, common.topic.image, George Gilbert Scott
Christ's College, Christchurch, education.educational_institution_campus.educational_institution, Christ's College, Christchurch
Earthquake, architecture.destruction_method.structures_destroyed, National Palace
Canterbury, base.aareas.schema.administrative_area.administrative_children, Christchurch
Christchurch, location.location.contains, Queen Elizabeth II Park
Willowbank Wildlife Reserve, Christchurch, location.location.containedby, Christchurch
Major trauma, people.cause_of_death.includes_causes_of_death, Earthquake
Cathedral of the Blessed Sacrament, Christchurch, common.topic.notable_for, g.1255mqhr3
Carlton Hotel, Christchurch, common.topic.notable_types, Accommodation
m.0whrwv8, business.employment_tenure.company, Christchurch
Christchurch, base.aareas.schema.administrative_area.administrative_parent, Canterbury
Hotel Grand Chancellor, Christchurch, common.topic.article, m.0gg7hn5
Earthquake, common.topic.image, Quake epicenters 1963-98
1997 Out Takes: A Reel Queer Film Festival, time.event.locations, Christchurch
Disaster, type.type.properties, Notable structures damaged
Christchurch, location.location.contains, Hagley Community College
Marian College, Christchurch, location.location.containedby, New Zealand
Earthquake, people.cause_of_death.people, Esra Elbirlik
Disaster, type.type.properties, Surviving structures
Christchurch, location.location.contains, Mount Pleasant
2011 Christchurch earthquake, event.disaster.structures_destroyed, CTV Building
Ferrymead Heritage Park, travel.tourist_attraction.near_travel_destination, Christchurch
Cathedral of the Blessed Sacrament, Christchurch, event.disaster_affected_structure.destroyed_by_disaster, 2011 Christchurch earthquake
Christchurch, location.location.contains, Al-Huda Islamic Charitable Trust - HICT
Christchurch, location.statistical_region.population, g.1jmcbhqzd
Christchurch, location.location.contains, Christ's College, Christchurch
St Luke's Church, Christchurch, common.topic.notable_types, Structure
2011 Christchurch earthquake, user.robert.earthquakes.earthquake.epicenter, m.0_gthl2
Catholic Cathedral College, location.location.containedby, Christchurch
Disaster, freebase.type_profile.published, Published
Disaster, common.topic.article, m.05yqw8w
Marian College, Christchurch, location.location.containedby, Christchurch
St Luke's Church, Christchurch, architecture.structure.architect, Cyril Mountfort
Orana Wildlife Park, location.location.containedby, Christchurch
Canterbury University College of Business and Economics, main campus, location.location.containedby, Christchurch
Earthquake, people.cause_of_death.people, Hiroshi Kakoi
Deluge, film.film.subjects, Earthquake
Christchurch, location.location.events, 2012 Show Me Shorts Film Festival
Al-Huda Islamic Charitable Trust - HICT, location.location.containedby, Christchurch
ChristChurch Cathedral, Christchurch, common.topic.notable_for, g.1258t5x50
Earthquake, common.topic.notable_for, g.1255p_cq5
2011 Christchurch earthquake, event.disaster.notable_structures_damaged, St Elmo Courts
Benjamin Mountfort, architecture.architect.structures_designed, ChristChurch Cathedral, Christchurch
Christchurch, location.location.events, 2007 Show Me Shorts Film Festival
Christchurch, location.location.contains, Canterbury University College of Business and Economics, main campus
University of Canterbury, location.location.containedby, New Zealand
2011 Christchurch earthquake, event.disaster.notable_structures_damaged, Carlton Hotel, Christchurch
Cathedral of the Blessed Sacrament, Christchurch, common.topic.notable_types, Building
Earthquake, exhibitions.exhibition_subject.exhibitions_created_about_this_subject, Volcanoes, Earthquakes and Tsunamis
m.0_gtjkq, user.robert.earthquakes.earthquake_nearest_location.earthquake, 2011 Christchurch earthquake
Disaster, type.type.properties, Areas affected
Avon River, location.location.containedby, Christchurch
Marian College, Christchurch, education.educational_institution_campus.educational_institution, Marian College, Christchurch
Earthquake, book.book_subject.works, Unutma Beni Apartmanı
Christchurch, location.location.contains, Villa Maria College, Christchurch
Hotel Grand Chancellor, Christchurch, location.location.geolocation, m.01157rfw
Christchurch Polytechnic Institute of Technology, education.educational_institution_campus.educational_institution, Christchurch Polytechnic Institute of Technology
Earthquake, people.cause_of_death.people, Maria Elizabetta Beccari
Christchurch, base.biblioness.bibs_location.country, New Zealand
2011 IPC Athletics World Championships, time.event.locations, Christchurch
Villa Maria College, Christchurch, education.educational_institution_campus.educational_institution, Villa Maria College, Christchurch
Christchurch, location.location.contains, Middleton Grange School
2011 Christchurch earthquake, time.event.start_date, 2011-02-22
Hagley Park, location.location.containedby, Christchurch
International Antarctic Centre, travel.tourist_attraction.near_travel_destination, Christchurch
Earthquake, freebase.valuenotation.has_no_value, Official website
2011 Christchurch earthquake, base.schemastaging.context_name.pronunciation, g.125_q2t67
m.043zyvg, government.government_position_held.jurisdiction_of_office, Christchurch
Disaster-affected structure, type.type.domain, Event
Canterbury, location.location.contains, Christ's College, Christchurch
2011 Christchurch earthquake, user.robert.earthquakes.earthquake.magnitude, m.0j6m3jn
Canterbury, location.location.containedby, New Zealand
Canterbury, location.location.contains, Christchurch
Christchurch, location.location.events, 2007 Documentary Edge Film Festival
Christchurch, location.location.events, 2013 Show Me Shorts Film Festival
Earthquake, architecture.destruction_method.structures_destroyed, Royal Opera of the Tejo
Centennial Park, Christchurch, location.location.containedby, Christchurch
Earthquake, common.topic.webpage, m.09ytfyn
Canterbury Museum, Christchurch, travel.tourist_attraction.near_travel_destination, Christchurch
Villa Maria College, Christchurch, education.educational_institution.campuses, Villa Maria College, Christchurch
Christchurch, common.topic.article, m.02yc5n
Christchurch International Airport, location.location.containedby, South Island
ChristChurch Cathedral, Christchurch, common.topic.article, m.04bp88
Iris Adrian, people.deceased_person.cause_of_death, Earthquake
Earthquake, book.book_subject.works, Report on 2011 International Year part 4 Haiti's Hope Now and Tomorrow
2013 Show Me Shorts Film Festival, time.event.locations, Christchurch
St Paul's Church, Christchurch, location.location.geolocation, m.0wmy9rn
Earthquake, book.book_subject.works, Motus Medi-terraneus
Disaster, type.type.expected_by, Damaged by disasters
2011 Christchurch earthquake, event.disaster.structures_damaged, Christchurch Hospital
Christchurch, location.location.contains, Lancaster Park
Earthquake, base.schemastaging.context_name.pronunciation, g.125_n0yfv
Hollywood Theatre, location.location.containedby, Christchurch
Christ's College, Christchurch, location.location.containedby, Canterbury
Christ's College, Christchurch, location.location.containedby, Christchurch
Disaster, type.type.properties, Structures destroyed
Christchurch, location.location.contains, Christchurch Botanic Gardens
Earthquake, film.film_subject.films, Deluge
St Paul's Church, Christchurch, common.topic.article, m.0h3sp93
Christchurch, travel.travel_destination.tourist_attractions, Christchurch Botanic Gardens
Earthquake, book.book_subject.works, Nuclear Snow in Japanese Springtime An Editorial Poem-Commentary
Christchurch, location.statistical_region.population, g.1jmcbjmtc
Christchurch Hospital, common.topic.article, m.0by1172
Cathedral Square, Christchurch, location.location.containedby, New Zealand
OxfordTerraceChristchurch13June2008, common.image.appears_in_topic_gallery, Christchurch City Council
Christchurch Polytechnic Institute of Technology, location.location.containedby, Christchurch
Earthquake, event.disaster_type.disasters_of_this_type, 2011 Christchurch earthquake
Willowbank Wildlife Reserve, Christchurch, travel.tourist_attraction.near_travel_destination, Christchurch
Christchurch, location.location.contains, Centennial Park, Christchurch
2011 Christchurch earthquake, event.disaster.notable_structures_damaged, ChristChurch Cathedral, Christchurch
Cathedral Square, Christchurch, travel.tourist_attraction.near_travel_destination, Christchurch
Christchurch, travel.travel_destination.tourist_attractions, Lyttelton Timeball Station
Disaster, freebase.type_profile.equivalent_topic, Disaster
The Star, book.newspaper.circulation_areas, Christchurch
Christchurch International Airport, location.location.containedby, New Zealand
Disaster, type.type.properties, Total damage
University of Canterbury, location.location.nearby_airports, Christchurch International Airport
Realm of New Zealand, location.location.contains, Christchurch
St Margaret's College, Christchurch, location.location.containedby, Canterbury
Earthquake, common.topic.webpage, m.0b4622j
Christchurch, location.location.containedby, Canterbury
Ballantyne's fire, time.event.locations, Christchurch
Christchurch, location.location.geolocation, m.0239l2s
Event, freebase.type_profile.published, Published
Christchurch, location.location.events, 2011 Christchurch earthquake
Disaster, type.type.expected_by, Disasters of this type
Christchurch, location.location.contains, Egyptian Association of Canterbury
Earthquake, architecture.destruction_method.structures_destroyed, Igreja de Miseriacordia
Pacific Tower, Christchurch, location.location.containedby, New Zealand
m.07nf005, base.ontologies.ontology_instance_mapping.freebase_topic, Earthquake
Ecumenical Institute for Distance Theological Studies, education.educational_institution.campuses, Ecumenical Institute for Distance Theological Studies
Hagley Community College, location.location.containedby, Christchurch
Christchurch Polytechnic Institute of Technology, location.location.containedby, New Zealand
Christchurch, location.location.contains, Rochester and Rutherford Hall
St Paul's Church, Christchurch, common.topic.notable_types, Structure
2011 Christchurch earthquake, time.event.locations, Christchurch
Christchurch, base.aareas.schema.administrative_area.administrative_area_type, New Zealand city
Christchurch, location.location.contains, Sugarloaf
m.09ysm2x, common.webpage.topic, Earthquake
Christchurch, location.statistical_region.population, g.1jmcbfy1y
Christchurch, location.location.containedby, South Island
m.04d56f_, common.webpage.topic, Christchurch
Christchurch Arts Centre, location.location.containedby, New Zealand
Christchurch Botanic Gardens, location.location.containedby, Christchurch
Christchurch, location.location.contains, Willowbank Wildlife Reserve, Christchurch
Hotel Grand Chancellor, Christchurch, common.topic.notable_types, Structure
Christchurch Hospital, location.location.containedby, New Zealand
Christchurch, location.location.contains, Ecumenical Institute for Distance Theological Studies
Christchurch, common.topic.image, Christchurch city
Christ's College, Christchurch, education.educational_institution.campuses, Christ's College, Christchurch
ChristChurch Cathedral, Christchurch, location.location.containedby, New Zealand
City Mall, Christchurch, common.topic.notable_types, Disaster-affected structure
Christchurch, periodicals.newspaper_circulation_area.newspapers, The Press
Carlton Hotel, Christchurch, common.topic.notable_for, g.1259w1_2l
Earthquake, people.cause_of_death.people, Iris Adrian
Merivale, location.location.containedby, Christchurch
2011 Christchurch earthquake, event.disaster.areas_affected, Christchurch
Christchurch, location.location.contains, Burnside High School
Hotel Grand Chancellor, Christchurch, common.topic.notable_for, g.1z2sr3jly
Earthquake, common.topic.webpage, m.09x0k69
Earthquake, common.topic.webpage, m.09x71mb
Earthquake, people.cause_of_death.people, Georg Haentzschel
m.09y2q5w, common.webpage.topic, Earthquake
Disaster, type.type.expected_by, Destroyed by disaster
Christchurch Hospital, common.topic.image, Christchurch Hospital
2011 Christchurch earthquake, event.disaster.notable_structures_damaged, Holy Trinity Avonside
University of Canterbury, location.location.containedby, Christchurch
Sunday News, book.newspaper.circulation_areas, Christchurch
Canterbury Museum, Christchurch, architecture.structure.architectural_style, Gothic Revival architecture
m.09x6y_t, common.webpage.topic, Earthquake
Earthquake, people.cause_of_death.parent_cause_of_death, Major trauma
2011 Christchurch earthquake, common.topic.image, Cathedral Square 2402
Report on 2011 International Year part 4 Haiti's Hope Now and Tomorrow, book.written_work.subjects, Earthquake
Egyptian Association of Canterbury, location.location.containedby, Christchurch
Christchurch, location.location.contains, St Margaret's College, Christchurch
Accommodation, freebase.type_profile.published, Published
Cathedral of the Blessed Sacrament, Christchurch, architecture.structure.architect, Benjamin Mountfort
Christchurch, location.location.contains, Linwood
St Paul's Church, Christchurch, common.topic.notable_for, g.125ffp908
Earthquake, book.book_subject.works, Stanford scientists eavesdrop on erupting volcano's astonishing seismic sound
Christchurch, location.statistical_region.population, g.1jmcbjy2l
m.0b4622j, common.webpage.topic, Earthquake
Burnside High School, location.location.containedby, Christchurch
São Bento Palace, architecture.structure.destroyed_by, Earthquake
Christchurch, travel.travel_destination.tourist_attractions, Willowbank Wildlife Reserve, Christchurch
Disaster, type.type.properties, Notable people killed
Structure, freebase.type_profile.published, Published
Christchurch, location.location.events, 2014 Out Takes: A Reel Queer Film Festival
m.09ytfyn, common.webpage.topic, Earthquake
Christchurch, periodicals.newspaper_circulation_area.newspapers, Sunday News
2010 PGA Tour of Australasia, time.event.locations, Christchurch
Christchurch, location.location.contains, St Thomas of Canterbury College
Christchurch, location.location.contains, Marian College, Christchurch
2011 Christchurch earthquake, event.disaster.structures_destroyed, City Mall, Christchurch
ChristChurch Cathedral, Christchurch, architecture.structure.architect, Benjamin Mountfort
2007 Documentary Edge Film Festival, time.event.locations, Christchurch
ChristChurch Cathedral, Christchurch, common.topic.notable_types, Structure
2011 Christchurch earthquake, event.disaster.structures_destroyed, Cathedral of the Blessed Sacrament, Christchurch
Cathedral Square, Christchurch, common.topic.notable_types, Tourist attraction
2009 Show Me Shorts Film Festival, time.event.locations, Christchurch
Earthquake, common.topic.article, m.02r9k
Canterbury, location.location.contains, Villa Maria College, Christchurch
St Thomas of Canterbury College, location.location.containedby, Christchurch
2011 Christchurch earthquake, user.robert.earthquakes.earthquake.nearest_location, m.0_gtjkq
Kiwi PyCon 2009, time.event.locations, Christchurch
2012 Show Me Shorts Film Festival, time.event.locations, Christchurch
Christchurch, travel.travel_destination.tourist_attractions, Canterbury Museum, Christchurch
Christchurch, location.statistical_region.population, m.04d1yvn
Cathedral Square, Christchurch, location.location.containedby, Christchurch
Earthquake, common.topic.webpage, m.09x6y_t
Cathedral of the Blessed Sacrament, Christchurch, location.location.containedby, New Zealand
Christchurch, common.topic.image, Christchurch
Disaster, type.type.properties, Survivors
2011 Christchurch earthquake, common.topic.notable_for, g.12586gb01
Earthquake, base.ontologies.ontology_instance.equivalent_instances, m.07nf005
Dux Live, location.location.containedby, Christchurch
Christchurch, location.location.containedby, Realm of New Zealand
Marian College, Christchurch, location.location.containedby, Canterbury
St Luke's Church, Christchurch, common.topic.article, m.0j_2yx3
St Paul's Church, Christchurch, architecture.structure.architect, Samuel Farr
St Luke's Church, Christchurch, location.location.geolocation, m.0z8fp9m
Disaster, type.type.properties, Total injuries
Christchurch Botanic Gardens, common.topic.notable_types, Tourist attraction
St Luke's Church, Christchurch, event.disaster_affected_structure.damaged_by_disasters, 2011 Christchurch earthquake
South Island, location.location.contains, Christchurch
2011 Christchurch earthquake, user.robert.earthquakes.earthquake.date_and_time, 2011-02-21T23:51:00
St Margaret's College, Christchurch, location.location.containedby, New Zealand
Disaster, freebase.type_profile.strict_included_types, Abstract
Christchurch, location.location.contains, Christchurch Polytechnic Institute of Technology
Christchurch, location.location.events, Music as a Weapon Tour: Australia and New Zealand (2011)
Christchurch, location.location.events, 2010 PGA Tour of Australasia
Christchurch, location.location.events, 2009 Show Me Shorts Film Festival
Linwood College, location.location.containedby, Christchurch
m.09x793z, common.webpage.topic, Earthquake
Earthquake, common.topic.webpage, m.09y2q5w
2007 Show Me Shorts Film Festival, time.event.locations, Christchurch
2011 Christchurch earthquake, event.disaster.notable_structures_damaged, Durham Street Methodist Church
m.09x0k69, common.webpage.topic, Earthquake
South Island, location.location.containedby, New Zealand
Hanging Gardens of Babylon, architecture.structure.destroyed_by, Earthquake
2011 Christchurch earthquake, user.robert.earthquakes.earthquake.fatalities, m.0_gtjwj

Answer: 2011-02-22