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: What administrative center of Belgium did the Battle of Passchendaele occur in? 
Knowledge Triplets: Liège, location.administrative_division.country, Belgium
Battle of Lanzerath Ridge, time.event.locations, Belgium
Belgium, location.location.events, Battle of the Scheldt
John Whittle, military.military_person.participated_in_conflicts, Battle of Passchendaele
First Battle of Passchendaele, common.topic.notable_types, Military Conflict
Belgium, base.aareas.schema.administrative_area.subdividing_type, Belgian region
Battle of the Scheldt, time.event.locations, Belgium
Passchendaele, film.film.produced_by, Paul Gross
Belgian province, base.aareas.schema.administrative_area_type.subdivides_type, Belgian region
Belgium, base.aareas.schema.administrative_area.administrative_children, Wallonia
Second Battle of Passchendaele, base.culturalevent.event.entity_involved, German Empire
Battle of Passchendaele, time.event.includes_event, First Battle of Passchendaele
m.0dh6494, military.military_combatant_group.conflict, Second Battle of Passchendaele
Belgium, location.location.events, 2014 Gent–Wevelgem
Battle of Passchendaele, time.event.included_in_event, World War I
Belgian municipality, base.aareas.schema.administrative_area_type.sovereignty, Belgium
Frederick Tubb, military.military_person.participated_in_conflicts, Battle of Passchendaele
Belgium, base.aareas.schema.administrative_area.pertinent_type, Belgian region
Battle of Belgium, base.culturalevent.event.entity_involved, French Third Republic
Edward Cooper, military.military_person.participated_in_conflicts, Battle of Passchendaele
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Frederick Birks
Battle of Passchendaele, military.military_conflict.commanders, m.04kxmb5
m.04fsp5q, military.military_command.military_conflict, Second Battle of Passchendaele
Frederick Birks, military.military_person.participated_in_conflicts, Battle of Passchendaele
First Battle of Passchendaele, military.military_conflict.commanders, m.07llv2f
Battle of Passchendaele, military.military_conflict.military_personnel_involved, John Kendrick Skinner
Battle of Passchendaele, base.culturalevent.event.entity_involved, François Anthoine
Capture of Wurst Farm, time.event.included_in_event, Battle of Passchendaele
Belgium, location.location.events, Battle of Rijmenam
Battle of Passchendaele, military.military_conflict.military_personnel_involved, John Whittle
Second Battle of Passchendaele, military.military_conflict.commanders, m.05nr3nl
Battle of France, base.culturalevent.event.entity_involved, Leopold III of Belgium
Belgium, location.location.events, Battle of the Frontiers
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Blair Wark
Harry Patch, military.military_person.participated_in_conflicts, Battle of Passchendaele
William Faulds, military.military_person.participated_in_conflicts, Battle of Passchendaele
Battle of Pilckem Ridge, time.event.included_in_event, Battle of Passchendaele
Second Battle of Passchendaele, time.event.included_in_event, World War I
Passendale, location.location.events, Battle of Passchendaele
Battle of Elixheim, time.event.locations, Belgium
Lewis McGee, military.military_person.participated_in_conflicts, Battle of Passchendaele
Second Battle of Passchendaele, base.culturalevent.event.entity_involved, Arthur Currie
Belgium, location.location.events, Operation Bodenplatte
Second Battle of Passchendaele, base.culturalevent.event.entity_involved, United Kingdom
Belgium, location.country.administrative_divisions, Antwerp
Battle of Passchendaele, military.military_conflict.military_personnel_involved, John Dwyer
Flemish Region, base.aareas.schema.administrative_area.administrative_children, West Flanders
Paul Gross, film.writer.film, Passchendaele
Bright Williams, military.military_person.participated_in_conflicts, Battle of Passchendaele
Belgium, location.location.events, Battle of Lanzerath Ridge
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Frank Hurley
First Battle of Passchendaele, base.culturalevent.event.entity_involved, German Empire
Mortimer Wheeler, military.military_person.participated_in_conflicts, Battle of Passchendaele
First Battle of Passchendaele, time.event.included_in_event, Battle of Passchendaele
Second Battle of Passchendaele, military.military_conflict.combatants, m.04fsp5w
Battle of Passchendaele, base.culturalevent.event.entity_involved, German Empire
Belgium, location.location.events, Battle of France
Belgium, base.aareas.schema.administrative_area.administrative_children, Flemish Region
Arrondissement of Oudenaarde, location.administrative_division.second_level_division_of, Belgium
Arrondissement of Aalst, location.administrative_division.second_level_division_of, Belgium
Belgium, base.aareas.schema.administrative_area.administrative_parent, Earth
m.04kxm90, military.military_command.military_conflict, Battle of Passchendaele
Belgium, location.location.events, Western Front
Battle of Passchendaele, military.military_conflict.commanders, m.04kxm8s
John Patrick Hamilton, military.military_person.participated_in_conflicts, Battle of Passchendaele
Belgium, location.country.administrative_divisions, Luxembourg
Second Battle of Passchendaele, military.military_conflict.combatants, m.05cm40f
Belgian arrondissement, base.aareas.schema.administrative_area_type.sovereignty, Belgium
Battle of France, time.event.locations, Belgium
Battle of Passchendaele, time.event.included_in_event, Western Front
Arrondissement of Diksmuide, location.administrative_division.second_level_division_of, Belgium
Battle of Passchendaele, time.event.includes_event, Battle of the Menin Road Ridge
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Thomas Whitham
First Battle of Passchendaele, base.culturalevent.event.entity_involved, United Kingdom
Battle of Passchendaele, base.culturalevent.event.entity_involved, Erich Ludendorff
First Battle of Passchendaele, base.culturalevent.event.entity_involved, Herbert Plumer, 1st Viscount Plumer
Battle of Belgium, base.culturalevent.event.entity_involved, Leopold III of Belgium
East Flanders, base.aareas.schema.administrative_area.administrative_parent, Flemish Region
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Roy Inwood
Second Battle of Passchendaele, military.military_conflict.combatants, m.0dh6494
Belgian region, type.type.domain, Administrative Areas
Belgian province, base.aareas.schema.administrative_area_type.subdividing_type, Belgian arrondissement
Belgian region, base.aareas.schema.administrative_area_type.iso_country, Belgium
Percy Statton, military.military_person.participated_in_conflicts, First Battle of Passchendaele
m.0663z_m, military.military_combatant_group.conflict, Battle of Passchendaele
Battle of Passchendaele, military.military_conflict.military_personnel_involved, John Patrick Hamilton
Belgium, location.location.events, Belgian Revolution
Battle of Passchendaele, base.culturalevent.event.entity_involved, French Third Republic
m.064zk4w, military.military_command.military_conflict, Battle of Belgium
Passchendaele, film.film.subjects, World War I
Belgium, location.location.events, Flanders Campaign
First Battle of Passchendaele, time.event.locations, Passendale
Chateau Wood, Ypres, 1917 by Frank Hurley, common.image.appears_in_topic_gallery, Battle of Passchendaele
Battle of Passchendaele, time.event.includes_event, Second Battle of Passchendaele
Walloon Brabant, base.aareas.schema.administrative_area.administrative_area_type, Belgian province
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Arthur Currie
Liège, base.aareas.schema.administrative_area.administrative_area_type, Belgian province
Second Battle of Passchendaele, military.military_conflict.combatants, m.04fsp60
West Flanders, base.aareas.schema.administrative_area.administrative_area_type, Belgian province
m.04kxm9g, military.military_command.military_conflict, Battle of Passchendaele
Arrondissement of Thuin, location.administrative_division.second_level_division_of, Belgium
First Battle of Passchendaele, military.military_conflict.military_personnel_involved, Percy Statton
Frank Hurley, military.military_person.participated_in_conflicts, Battle of Passchendaele
Second Battle of Passchendaele, time.event.included_in_event, Battle of Passchendaele
Passchendaele, film.film.featured_film_locations, Canada
Belgium, location.location.events, Battle of Elixheim
Battle of Passchendaele, base.culturalevent.event.entity_involved, Rupprecht, Crown Prince of Bavaria
Arrondissement of Tongeren, location.administrative_division.second_level_division_of, Belgium
Flemish Region, base.aareas.schema.administrative_area.administrative_children, East Flanders
Battle of Polygon Wood, time.event.included_in_event, Battle of Passchendaele
Battle of Belgium, time.event.included_in_event, Battle of France
Battle of Passchendaele, military.military_conflict.casualties, m.04kxmbp
Belgian region, base.aareas.schema.administrative_area_type.pertains_to, Belgium
Arrondissement of Ath, location.administrative_division.second_level_division_of, Belgium
Battle of Passchendaele, base.culturalevent.event.entity_involved, Friedrich Bertram Sixt von Armin
Belgium, location.country.administrative_divisions, Liège
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Leslie Andrew
Battle of the Bulge, time.event.locations, Belgium
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Walter Brown
Hainaut, location.administrative_division.country, Belgium
Battle of Passchendaele, base.culturalevent.event.entity_involved, John Monash
Battle of Passchendaele, military.military_conflict.combatants, m.0663z_m
East Flanders, common.topic.notable_types, Administrative Division
Battle of Passchendaele, military.military_conflict.commanders, m.04kxm9q
m.04mhy2m, military.military_command.military_conflict, Second Battle of Passchendaele
m.04kxm8s, military.military_command.military_conflict, Battle of Passchendaele
Battle of Passchendaele, military.military_conflict.military_personnel_involved, William Faulds
Belgian province, type.type.domain, Administrative Areas
Belgium, location.country.administrative_divisions, Hainaut
Wallonia, base.aareas.schema.administrative_area.administrative_parent, Belgium
First Battle of Passchendaele, base.culturalevent.event.entity_involved, Friedrich Bertram Sixt von Armin
Limburg, location.administrative_division.country, Belgium
Joseph Maxwell, military.military_person.participated_in_conflicts, Battle of Passchendaele
War of the First Coalition, time.event.locations, Belgium
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Clarence Jeffries
Leslie Andrew, military.military_person.participated_in_conflicts, Battle of Passchendaele
George Pearkes, military.military_person.participated_in_conflicts, Battle of Passchendaele
Battle of Passchendaele, base.culturalevent.event.entity_involved, Hubert Gough
Flanders, location.administrative_division.country, Belgium
Arrondissement of Antwerp, location.administrative_division.second_level_division_of, Belgium
Belgium, base.aareas.schema.administrative_area.pertinent_type, Belgian municipality
Passchendaele, film.film.directed_by, Paul Gross
Battle of Poelcappelle, time.event.locations, Flanders
Battle of the Yser, time.event.locations, Belgium
Western Front, time.event.includes_event, Battle of Passchendaele
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Adrian Carton de Wiart
Belgian arrondissement, freebase.type_hints.included_types, Administrative Area
Belgium, location.location.events, Battle of Fleurus
Battle of Passchendaele, base.culturalevent.event.entity_involved, Herbert Plumer, 1st Viscount Plumer
Arrondissement of Namur, location.administrative_division.second_level_division_of, Belgium
Clarence Jeffries, military.military_person.participated_in_conflicts, Battle of Passchendaele
Belgian municipality, freebase.type_hints.included_types, Administrative Area
Battle of Broodseinde, time.event.included_in_event, Battle of Passchendaele
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Walter Peeler
Belgium, location.location.events, German invasion of Belgium
m.05nr3nr, military.military_command.military_conflict, Second Battle of Passchendaele
Walloon Brabant, location.administrative_division.country, Belgium
Battle of Passchendaele, military.military_conflict.commanders, m.04kxm9g
Arrondissement of Turnhout, location.administrative_division.second_level_division_of, Belgium
Belgium, location.country.administrative_divisions, Flemish Brabant
West Flanders, base.aareas.schema.administrative_area.administrative_parent, Flemish Region
m.0w9vnj9, location.location_symbol_relationship.administrative_division, Belgium
Second Battle of Passchendaele, base.culturalevent.event.entity_involved, Hubert Gough
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Bright Williams
Belgium, location.country.administrative_divisions, Limburg
John Brown Hamilton, military.military_person.participated_in_conflicts, Battle of Passchendaele
Antwerp, location.administrative_division.country, Belgium
Belgian province, base.aareas.schema.administrative_area_type.sovereignty, Belgium
John Kendrick Skinner, military.military_person.participated_in_conflicts, Battle of Passchendaele
Arrondissement of Kortrijk, location.administrative_division.second_level_division_of, Belgium
Namur, location.administrative_division.country, Belgium
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Harry Patch
Battle of Passchendaele, military.military_conflict.military_personnel_involved, William Merrifield
Belgium, base.aareas.schema.administrative_area.administrative_children, Brussels-Capital Region
Belgian region, freebase.type_hints.included_types, Administrative Area
Arthur Currie, military.military_person.participated_in_conflicts, Battle of Passchendaele
Arrondissement of Ypres, location.administrative_division.second_level_division_of, Belgium
Belgium, location.country.administrative_divisions, Wallonia
Western Front, time.event.locations, Belgium
West Flanders, location.administrative_division.country, Belgium
First Battle of Passchendaele, common.topic.article, m.07k4y03
Belgian arrondissement, base.aareas.schema.administrative_area_type.pertains_to, Belgium
Belgium, base.aareas.schema.administrative_area.administrative_area_type, Sovereign state
Battle of Belgium, time.event.locations, Belgium
John Vereker, 6th Viscount Gort, military.military_person.participated_in_conflicts, Battle of Passchendaele
Flanders, location.location.events, First Battle of Ypres
Belgian province, base.aareas.schema.administrative_area_type.pertains_to, Belgium
Belgium, base.aareas.schema.administrative_area.pertinent_type, Belgian province
Battle of the Menin Road Ridge, time.event.included_in_event, Battle of Passchendaele
Arrondissement of Mechelen, location.administrative_division.second_level_division_of, Belgium
Battle of Passchendaele, time.event.includes_event, Battle of Broodseinde
Second Battle of Passchendaele, common.topic.notable_types, Military Conflict
Passchendaele, film.film.language, German Language
West Flanders, common.topic.notable_types, Administrative Division
Belgium, base.aareas.schema.administrative_area.pertinent_type, Belgian arrondissement
Belgium, location.country.administrative_divisions, Flanders
Belgium, location.country.administrative_divisions, Arrondissement of Brussels-Capital
Antwerp, base.aareas.schema.administrative_area.administrative_area_type, Belgian province
Second Battle of Passchendaele, base.culturalevent.event.entity_involved, Friedrich Bertram Sixt von Armin
Harry Murray, military.military_person.participated_in_conflicts, Battle of Passchendaele
Passchendaele, film.film.subjects, Battle of Passchendaele
Battle of Belgium, base.culturalevent.event.entity_involved, Nazi Germany
Belgium, location.country.administrative_divisions, Namur
Second Battle of Passchendaele, base.culturalevent.event.entity_involved, Herbert Plumer, 1st Viscount Plumer
Flanders Campaign, time.event.locations, Belgium
Belgium, location.country.administrative_divisions, Walloon Brabant
m.05nr3nl, military.military_command.military_conflict, Second Battle of Passchendaele
Battle of Passchendaele, time.event.includes_event, Battle of Langemarck
Passchendaele, film.film.language, English Language
Flemish Region, base.aareas.schema.administrative_area.administrative_parent, Belgium
Arrondissement of Bastogne, location.administrative_division.second_level_division_of, Belgium
m.04kxm7d, military.military_combatant_group.conflict, Battle of Passchendaele
Belgian province, freebase.type_hints.included_types, Administrative Area
Arrondissement of Brussels-Capital, location.administrative_division.country, Belgium
Battle of Passchendaele, common.topic.notable_types, Military Conflict
Limburg, base.aareas.schema.administrative_area.administrative_area_type, Belgian province
Blair Wark, military.military_person.participated_in_conflicts, Battle of Passchendaele
Belgium, location.country.administrative_divisions, Flanders
Battle of the Scheldt, base.culturalevent.event.entity_involved, Belgium
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Percy Statton
m.04kxm9q, military.military_command.military_conflict, Battle of Passchendaele
Second Battle of Passchendaele, common.topic.article, m.02rfm93
Battle of Passchendaele, time.event.includes_event, Battle of Polygon Wood
Passchendaele, film.film.country, Canada
Some Desperate Glory: The World War I Diary of a British Officer, 1917, book.written_work.subjects, Battle of Passchendaele
Walter Peeler, military.military_person.participated_in_conflicts, Battle of Passchendaele
Arrondissement of Marche-en-Famenne, location.administrative_division.second_level_division_of, Belgium
Battle of Rijmenam, time.event.locations, Belgium
Flanders, location.location.events, Battle of Passchendaele
m.04fsp65, military.military_combatant_group.conflict, Second Battle of Passchendaele
Tom Bridges, military.military_person.participated_in_conflicts, Battle of Passchendaele
Belgium, location.location.events, Battle of Langemarck
Arrondissement of Hasselt, location.administrative_division.second_level_division_of, Belgium
Battle of Passchendaele, book.book_subject.works, Some Desperate Glory: The World War I Diary of a British Officer, 1917
Adrian Carton de Wiart, military.military_person.participated_in_conflicts, Battle of Passchendaele
Battle of Belgium, base.culturalevent.event.entity_involved, John Vereker, 6th Viscount Gort
Belgian province, base.aareas.schema.administrative_area_type.iso_country, Belgium
Battle of Château-Thierry, time.event.locations, Belgium
Battle of Langemarck, time.event.locations, Belgium
Battle of Passchendaele, time.event.includes_event, Battle of Pilckem Ridge
Battle of Messines, time.event.locations, Flanders
Belgium, location.location.events, Tactical development on the Western Front in 1917
Battle of Langemarck, time.event.included_in_event, Battle of Passchendaele
Wallonia, location.administrative_division.country, Belgium
Belgium, location.location.events, Planned French invasion of Britain
George Ingram, military.military_person.participated_in_conflicts, Battle of Passchendaele
m.04kxmb5, military.military_command.military_conflict, Battle of Passchendaele
Brussels-Capital Region, base.aareas.schema.administrative_area.administrative_parent, Belgium
Battle of Pilckem Ridge, time.event.locations, Belgium
Arrondissement of Tielt, location.administrative_division.second_level_division_of, Belgium
Battle of Steppes, time.event.locations, Belgium
Flemish Brabant, location.administrative_division.country, Belgium
Battle of Passchendaele, military.military_conflict.commanders, m.04kxm90
Battle of Passchendaele, time.event.includes_event, Capture of Wurst Farm
First Battle of Passchendaele, military.military_conflict.commanders, m.07llv28
William Merrifield, military.military_person.participated_in_conflicts, Battle of Passchendaele
Belgian arrondissement, type.type.domain, Administrative Areas
Battle of Passchendaele, military.military_conflict.casualties, m.04kxmbf
Battle of Passchendaele, common.topic.article, m.0c3n5
Second Battle of Passchendaele, military.military_conflict.commanders, m.05nr3nr
Western Front, time.event.includes_event, Battle of Belgium
m.04kxmbp, military.casualties.military_conflict, Battle of Passchendaele
Flanders, common.topic.notable_types, Administrative Division
Walter Brown, military.military_person.participated_in_conflicts, Battle of Passchendaele
m.05cm40f, military.military_combatant_group.conflict, Second Battle of Passchendaele
Lewis Pugh Evans, military.military_person.participated_in_conflicts, Battle of Passchendaele
Battle of Passchendaele, military.military_conflict.military_personnel_involved, George Pearkes
m.07llv23, military.military_combatant_group.conflict, First Battle of Passchendaele
Battle of Passchendaele, military.military_conflict.military_personnel_involved, George Ingram
Arrondissement of Neufchâteau, Belgium, location.administrative_division.second_level_division_of, Belgium
Noel Godfrey Chavasse, military.military_person.participated_in_conflicts, Battle of Passchendaele
First Battle of Passchendaele, common.topic.notable_for, g.125djnr5s
Belgium, location.location.events, Battle of Steppes
Passchendaele, film.film.written_by, Paul Gross
Second Battle of Passchendaele, military.military_conflict.combatants, m.04fsp65
John Dwyer, military.military_person.participated_in_conflicts, Battle of Passchendaele
Luxembourg, location.administrative_division.country, Belgium
Second Battle of Passchendaele, base.culturalevent.event.entity_involved, French Third Republic
Belgian arrondissement, base.aareas.schema.administrative_area_type.subdivides_type, Belgian province
First Battle of Ypres, base.culturalevent.event.entity_involved, Albert I of Belgium
Battle of Passchendaele, time.event.locations, Passendale
Second Battle of Passchendaele, military.military_conflict.commanders, m.04fsp5q
m.04kxmbf, military.casualties.military_conflict, Battle of Passchendaele
Wallonia, base.aareas.schema.administrative_area.administrative_area_type, Belgian region
East Flanders, location.administrative_division.country, Belgium
Battle of Passchendaele, base.schemastaging.context_name.pronunciation, g.125_ksqhw
m.04fsp60, military.military_combatant_group.conflict, Second Battle of Passchendaele
Battle of Belgium, time.event.included_in_event, World War II
Battle of Passchendaele, common.topic.notable_for, g.125h4lk_g
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Joseph Maxwell
Percy Statton, military.military_person.participated_in_conflicts, Battle of Passchendaele
Battle of Passchendaele, time.event.locations, Flanders
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Alexander Edwards
Battle of Passchendaele, military.military_conflict.military_personnel_involved, John Vereker, 6th Viscount Gort
Belgium, location.location.events, 1988 Brussels summit
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Charles Brand
Belgian region, base.aareas.schema.administrative_area_type.sovereignty, Belgium
Belgium, location.location.events, Battle of Château-Thierry
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Hugh Colvin
Battle of Passchendaele, base.culturalevent.event.entity_involved, Arthur Currie
Battle of Poelcappelle, time.event.included_in_event, Battle of Passchendaele
Second Battle of Passchendaele, time.event.locations, Passendale
Arrondissement of Neufchâteau, Belgium, common.topic.notable_types, Administrative Division
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Lewis McGee
Belgian municipality, base.aareas.schema.administrative_area_type.pertains_to, Belgium
m.04fsp5w, military.military_combatant_group.conflict, Second Battle of Passchendaele
Passendale, location.location.events, First Battle of Passchendaele
Flanders, location.location.events, Battle of Messines
First Battle of Passchendaele, military.military_conflict.combatants, m.07llv23
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Lewis Pugh Evans
Arrondissement of Tournai, location.administrative_division.second_level_division_of, Belgium
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Tom Bridges
Battle of Passchendaele, film.film_subject.films, Passchendaele
Second Battle of Passchendaele, military.military_conflict.commanders, m.04mhy2m
Battle of Belgium, common.topic.notable_types, Military Conflict
Hugh Colvin, military.military_person.participated_in_conflicts, Battle of Passchendaele
Roy Inwood, military.military_person.participated_in_conflicts, Battle of Passchendaele
Battle of Passchendaele, time.event.locations, Flanders
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Frederick Tubb
Battle of Passchendaele, military.military_conflict.military_personnel_involved, John Brown Hamilton
Battle of the Yser, base.culturalevent.event.entity_involved, Albert I of Belgium
Flemish Brabant, base.aareas.schema.administrative_area.administrative_area_type, Belgian province
Battle of Passchendaele, military.military_conflict.commanders, m.04kxm97
Battle of Passchendaele, military.military_conflict.combatants, m.04kxm7d
Battle of Passchendaele, base.culturalevent.event.entity_involved, Douglas Haig, 1st Earl Haig
m.04kxm9y, military.military_command.military_conflict, Battle of Passchendaele
Battle of the Frontiers, time.event.locations, Belgium
m.07llv28, military.military_command.military_conflict, First Battle of Passchendaele
Belgium, location.location.events, Battle of Pilckem Ridge
First Battle of Ypres, time.event.locations, Flanders
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Noel Godfrey Chavasse
Belgian region, base.aareas.schema.administrative_area_type.subdivides_place, Belgium
Battle of Passchendaele, military.military_conflict.commanders, m.04kxm9y
East Flanders, base.aareas.schema.administrative_area.administrative_area_type, Belgian province
Arrondissement of Huy, location.administrative_division.second_level_division_of, Belgium
Evan Wisdom, military.military_person.participated_in_conflicts, Battle of Passchendaele
First Battle of Passchendaele, time.event.included_in_event, World War I
m.04kxm97, military.military_command.military_conflict, Battle of Passchendaele
German invasion of Belgium, time.event.locations, Belgium
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Evan Wisdom
Namur, base.aareas.schema.administrative_area.administrative_area_type, Belgian province
Belgium, location.location.events, Battle of the Bulge
Battle of Belgium, time.event.included_in_event, Western Front
Battle of Passchendaele, time.event.includes_event, Battle of Poelcappelle
Charles Brand, military.military_person.participated_in_conflicts, Battle of Passchendaele
Battle of Fleurus, time.event.locations, Belgium
Belgium, location.country.administrative_divisions, West Flanders
Belgium, location.country.administrative_divisions, East Flanders
Passendale, location.location.events, Second Battle of Passchendaele
Belgium, location.location.events, Battle of Belgium
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Mortimer Wheeler
First Battle of Passchendaele, base.culturalevent.event.entity_involved, Hubert Gough
Belgium, location.location.events, War of the First Coalition
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Edward Cooper
Battle of Belgium, military.military_conflict.commanders, m.064zk4w
Battle of Passchendaele, military.military_conflict.military_personnel_involved, Harry Murray
Battle of Passchendaele, common.topic.image, Chateau Wood, Ypres, 1917 by Frank Hurley
Belgium, location.location.events, Battle of the Yser
Second Battle of Passchendaele, common.topic.notable_for, g.125b2pn0t
Belgian arrondissement, base.aareas.schema.administrative_area_type.iso_country, Belgium
m.07llv2f, military.military_command.military_conflict, First Battle of Passchendaele
Alexander Edwards, military.military_person.participated_in_conflicts, Battle of Passchendaele
Thomas Whitham, military.military_person.participated_in_conflicts, Battle of Passchendaele

Answer: Flanders