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 condition killed the "King George V 1911 color-crop" picture's protagonist? 
Knowledge Triplets: Prince Henry, Duke of Gloucester, people.person.gender, Male
George V, base.godparents.godparent.godchildren, Alexei Nikolaevich, Tsarevich of Russia
House of Windsor, people.family.members, Prince Henry, Duke of Gloucester
King George Square, symbols.namesake.named_after, George V
George VI, royalty.monarch.kingdom, British Raj
George V, people.person.children, Prince John of the United Kingdom
George V, base.ontologies.ontology_instance.equivalent_instances, m.09kltp9
Mary, Princess Royal and Countess of Harewood, people.family_member.family, House of Saxe-Coburg and Gotha
Alexandra of Denmark, base.eventparticipants.known_participants.participated_in, Devonshire House Ball
435px-Edward_VII_UK_and_successors.jpg, common.image.appears_in_topic_gallery, Edward VIII of the United Kingdom
George V, freebase.valuenotation.has_value, Height
George V, government.political_appointer.appointees, m.04_m8xf
Devonshire House Ball, base.eventparticipants.participated_event.notable_participants, Alexandra of Denmark
George V, common.topic.image, George V of the united Kingdom
Mary, Princess Royal and Countess of Harewood, people.family_member.family, House of Windsor
Prince John of the United Kingdom, people.family_member.family, House of Saxe-Coburg and Gotha
George V, common.topic.image, 435px-Edward_VII_UK_and_successors.jpg
Devonshire House Ball, base.eventparticipants.participated_event.notable_participants, Edward VII
King George V 1911 color-crop, common.image.appears_in_topic_gallery, George V
House of Windsor, people.family.country, United Kingdom
m.0669tqt, government.government_position_held.jurisdiction_of_office, United Kingdom
George V, common.topic.image, 392px-Mary_of_Teck_3.jpg
George V, royalty.noble_person.titles, m.04_b_0t
George V, people.person.nationality, India
George V, freebase.valuenotation.is_reviewed, Date of birth
George V, people.person.sibling_s, m.0hcc6sj
George V, award.award_winner.awards_won, m.0g9pjg2
George V, freebase.valuenotation.is_reviewed, Spouse (or domestic partner)
m.09kltp9, base.ontologies.ontology_instance_mapping.freebase_topic, George V
Edward VIII of the United Kingdom, royalty.monarch.kingdom, British Raj
George V, freebase.valuenotation.is_reviewed, Official name
Alexandra of Denmark, common.topic.image, 3304966.jpg
Prince John of the United Kingdom, freebase.valuenotation.has_value, Height
m.04_m8s0, government.government_position_held.appointed_by, George V
Alexandra of Denmark, people.person.children, George V
Parents, owl#inverseOf, Children
m.04j4jx3, organization.organization_membership.member, George V
Prince George, Duke of Kent, people.family_member.family, House of Windsor
George V, base.eventparticipants.known_participants.participated_in, Devonshire House Ball
House of Windsor, people.family.members, Mary, Princess Royal and Countess of Harewood
Edward VII, common.topic.image, 435px-Edward_VII_UK_and_successors.jpg
King George's Fields, symbols.namesake.named_after, George V
m.0hcc6sj, people.sibling_relationship.sibling, George V
King George V, fictional_universe.fictional_character.based_on, George V
Edward VIII of the United Kingdom, people.family_member.family, House of Saxe-Coburg and Gotha
George V, film.person_or_entity_appearing_in_film.films, m.0116084g
Edward VII, people.family_member.family, House of Saxe-Coburg and Gotha
George V, people.deceased_person.cause_of_death, Euthanasia
George V, people.person.sibling_s, m.0hcc6sc
3304937.jpg, common.image.appears_in_topic_gallery, George V
George V, common.topic.image, 3304944.jpg
Edward VIII of the United Kingdom, people.person.nationality, United Kingdom
Edward VII, common.topic.notable_types, Monarch
m.0g9pjg2, award.award_honor.award_winner, George V
George V, common.topic.image, 3311786.jpg
Edward VIII of the United Kingdom, people.family_member.family, House of Windsor
George V, people.person.children, Prince George, Duke of Kent
Edward VII, people.deceased_person.place_of_burial, St George's Chapel, Windsor Castle
200px-Nicolau_e_Jorge.jpg, common.image.appears_in_topic_gallery, George V
British Raj, royalty.kingdom.rulers, Edward VII
Alexandra of Denmark, freebase.valuenotation.has_value, Height
435px-Edward_VII_UK_and_successors.jpg, common.image.appears_in_topic_gallery, George VI
George VI, people.family_member.family, House of Windsor
Edward VIII of the United Kingdom, people.person.gender, Male
Prince George, Duke of Kent, common.topic.image, 3304944.jpg
Edward VIII of the United Kingdom, people.person.parents, George V
Alexei Nikolaevich, Tsarevich of Russia, base.godparents.godchild.godparents, Edward VII
George V, common.topic.image, 3304966.jpg
Prince John of the United Kingdom, freebase.valuenotation.has_no_value, Children
George V, common.topic.image, 3304937.jpg
3304966.jpg, common.image.appears_in_topic_gallery, Edward VII
British Raj, royalty.kingdom.rulers, George VI
George V, common.topic.notable_types, Monarch
George V, symbols.name_source.namesakes, George VI
King George V, fictional_universe.fictional_character.gender, Male
m.0jkk127, biology.animal_ownership.owners, George V
Prince Henry, Duke of Gloucester, people.person.nationality, United Kingdom
George V, common.topic.image, 3072128.jpg
India, freebase.valuenotation.is_reviewed, Official website
House of Saxe-Coburg and Gotha, royalty.royal_line.monarchs_from_this_line, George V
George VI, people.family_member.family, House of Saxe-Coburg and Gotha
Prince George, Duke of Kent, freebase.valuenotation.has_value, Height
m.04d4rcb, government.government_position_held.jurisdiction_of_office, United Kingdom
m.04_m8mr, government.government_position_held.appointed_by, George V
George V, people.person.children, Mary, Princess Royal and Countess of Harewood
George V, freebase.valuenotation.is_reviewed, Parents
George V, people.person.gender, Male
Edward VIII of the United Kingdom, royalty.monarch.kingdom, United Kingdom
George VI, people.person.nationality, United Kingdom
Devonshire House Ball, base.eventparticipants.participated_event.notable_participants, George V
George V, film.person_or_entity_appearing_in_film.films, m.0j_v5f8
George V, people.family_member.family, House of Saxe-Coburg and Gotha
m.05cwn4b, royalty.noble_title_tenure.noble_person, George V
George V, symbols.name_source.namesakes, King George Square
George VI, people.person.gender, Male
George V, freebase.valuenotation.is_reviewed, Gender
m.0hcc6s6, people.sibling_relationship.sibling, George V
Prince Henry, Duke of Gloucester, people.family_member.family, House of Windsor
George V, government.political_appointer.appointees, m.04_m9s_
3304966.jpg, common.image.appears_in_topic_gallery, Edward VIII of the United Kingdom
m.04l81ny, royalty.noble_title_tenure.noble_person, George V
George V, government.political_appointer.appointees, m.04_m95f
Edward VII, base.eventparticipants.known_participants.participated_in, Devonshire House Ball
Children, type.property.master_property, Parents
House of Windsor, royalty.royal_line.preceded_by, House of Saxe-Coburg and Gotha
George V, royalty.chivalric_order_founder.orders_founded, Order of the British Empire
House of Saxe-Coburg and Gotha, people.family.country, British Raj
Alexandra of Denmark, people.deceased_person.place_of_death, Sandringham House
George V, government.political_appointer.appointees, m.04_m9mg
Prince Henry, Duke of Gloucester, common.topic.image, 3304944.jpg
George V, fictional_universe.person_in_fiction.representations_in_fiction, Prince George
George V, people.person.spouse_s, m.02kp9gn
A Message to the Children of the Empire, music.recording.artist, George V
m.0hcc6sc, people.sibling_relationship.sibling, George V
House of Windsor, people.family.members, George V
George V, freebase.valuenotation.is_reviewed, Siblings
Prince John of the United Kingdom, people.family_member.family, House of Windsor
King George V 1911 color-crop, common.topic.image, George V
m.02kp9gn, people.marriage.spouse, George V
Edward VIII of the United Kingdom, people.person.nationality, India
Four Seasons Hotel George V, symbols.namesake.named_after, George V
m.05gmcm6, royalty.chivalric_order_membership.recipient, George V
George V, royalty.noble_person.titles, m.05cwn4b
m.04_m9s_, government.government_position_held.appointed_by, George V
King George V 1911 color-crop, common.image.size, m.0bck3bj
Mary, Princess Royal and Countess of Harewood, people.person.nationality, United Kingdom
3311786.jpg, common.image.appears_in_topic_gallery, George V
Prince George, Duke of Kent, people.deceased_person.place_of_burial, St George's Chapel, Windsor Castle
George V, symbols.name_source.namesakes, King George's Fields
m.0j_v5f8, film.personal_film_appearance.person, George V
George VI, common.topic.notable_types, Monarch
Prince George, Duke of Kent, people.person.parents, George V
Edward VII, common.topic.image, 3304966.jpg
George VI, people.deceased_person.place_of_burial, St George's Chapel, Windsor Castle
George V, royalty.monarch.kingdom, British Raj
m.0hcc6s1, people.sibling_relationship.sibling, George V
George V, biology.animal_owner.animals_owned, m.0jkk127
3304944.jpg, common.image.appears_in_topic_gallery, Prince Henry, Duke of Gloucester
Alexandra of Denmark, people.deceased_person.place_of_burial, St George's Chapel, Windsor Castle
George V, people.person.children, Edward VIII of the United Kingdom
George VI, symbols.namesake.named_after, George V
House of Saxe-Coburg and Gotha, royalty.royal_line.kingdom_s_ruled, United Kingdom
Prince Henry, Duke of Gloucester, people.family_member.family, House of Saxe-Coburg and Gotha
m.04_m8xf, government.government_position_held.appointed_by, George V
George V, people.family_member.family, House of Windsor
George V, government.political_appointer.appointees, m.04d4rcb
George V, common.topic.image, King George V 1911 color-crop
Prince Henry, Duke of Gloucester, freebase.valuenotation.has_value, Height
Edward VIII of the United Kingdom, common.topic.notable_types, Monarch
George V, fictional_universe.person_in_fiction.representations_in_fiction, King George V
m.0116084g, film.personal_film_appearance.person, George V
m.08d57q8, military.military_service.military_person, George V
George V, music.artist.track, A Message to the Children of the Empire
Prince John of the United Kingdom, people.person.gender, Male
Edward VII, royalty.monarch.kingdom, British Raj
George V, common.topic.image, 3302883.jpg
Alexandra of Denmark, people.family_member.family, House of Saxe-Coburg and Gotha
George V, government.politician.government_positions_held, m.0669tqt
Edward VIII of the United Kingdom, common.topic.image, 3304966.jpg
George V, people.person.sibling_s, m.0hcc6s1
3304966.jpg, common.image.appears_in_topic_gallery, George V
House of Windsor, royalty.royal_line.kingdom_s_ruled, United Kingdom
House of Saxe-Coburg and Gotha, royalty.royal_line.succeeded_by, House of Windsor
Edward VII, base.godparents.godparent.godchildren, Alexei Nikolaevich, Tsarevich of Russia
George V, royalty.monarch.royal_line, House of Windsor
George V, people.person.sibling_s, m.0hcc6rx
Edward VII, people.person.gender, Male
Alexei Nikolaevich, Tsarevich of Russia, base.godparents.godchild.godparents, George V
Edward VIII of the United Kingdom, common.topic.image, 435px-Edward_VII_UK_and_successors.jpg
Edward VII, royalty.monarch.kingdom, United Kingdom
George V, people.deceased_person.place_of_burial, Windsor Castle
George V, people.deceased_person.cause_of_death, Euthanasia
George V, royalty.noble_person.titles, m.05yx_75
m.05yx_75, royalty.noble_title_tenure.noble_person, George V
3302883.jpg, common.image.appears_in_topic_gallery, George V
3072128.jpg, common.image.appears_in_topic_gallery, George V
392px-Mary_of_Teck_3.jpg, common.image.appears_in_topic_gallery, George V
House of Windsor, people.family.members, Prince John of the United Kingdom
House of Windsor, people.family.founder, George V
George V, symbols.name_source.namesakes, King George Stakes
House of Windsor, royalty.royal_line.monarchs_from_this_line, George VI
George V, government.political_appointer.appointees, m.04_m8s0
George V, people.person.nationality, United Kingdom
George VI, people.person.nationality, India
Mary, Princess Royal and Countess of Harewood, people.person.parents, George V
George V, royalty.monarch.royal_line, House of Saxe-Coburg and Gotha
m.05fds7p, symbols.armorial_grant.granted_by, George V
George V, common.topic.article, m.0cmpz
House of Windsor, people.family.members, Prince George, Duke of Kent
m.04_b_0t, royalty.noble_title_tenure.noble_person, George V
George V, freebase.valuenotation.is_reviewed, Place of birth
George V, government.political_appointer.appointees, m.04_m8mr
Edward VIII of the United Kingdom, royalty.monarch.royal_line, House of Windsor
m.04_m95f, government.government_position_held.appointed_by, George V
3304944.jpg, common.image.appears_in_topic_gallery, Prince George, Duke of Kent
House of Windsor, people.family.members, Edward VIII of the United Kingdom
George VI, common.topic.image, 3304944.jpg
St George's Chapel, Windsor Castle, location.location.containedby, Windsor Castle
British Raj, royalty.kingdom.rulers, Edward VIII of the United Kingdom
m.04d4rcb, government.government_position_held.appointed_by, George V
Prince George, Duke of Kent, people.family_member.family, House of Saxe-Coburg and Gotha
George V, symbols.name_source.namesakes, King George V School
George V, freebase.valuenotation.is_reviewed, Children
George V of the united Kingdom, common.image.appears_in_topic_gallery, George V
m.0669tqt, government.government_position_held.office_holder, George V
House of Windsor, people.family.members, George VI
George V, common.topic.image, 95779660.jpg
George V, people.person.children, George VI
Mary, Princess Royal and Countess of Harewood, freebase.valuenotation.has_value, Height
George V, people.person.sibling_s, m.0hcc6s6
George V, media_common.dedicatee.dedications, m.05m3s_n
George V, military.military_person.service, m.08d57q8
George V, people.person.children, Prince Henry, Duke of Gloucester
Sandringham House, location.location.people_born_here, Mary, Princess Royal and Countess of Harewood
Prince Henry, Duke of Gloucester, people.person.parents, George V
Prince George, Duke of Kent, people.person.gender, Male
3304944.jpg, common.image.appears_in_topic_gallery, Mary, Princess Royal and Countess of Harewood
m.05m3s_n, media_common.dedication.dedicated_to, George V
3304966.jpg, common.image.appears_in_topic_gallery, Alexandra of Denmark
George V, common.topic.image, 200px-Nicolau_e_Jorge.jpg
House of Windsor, royalty.royal_line.monarchs_from_this_line, George V
House of Saxe-Coburg and Gotha, royalty.royal_line.monarchs_from_this_line, Edward VII
Windsor Castle, location.location.contains, St George's Chapel, Windsor Castle
Parents, type.property.reverse_property, Children
Alexandra of Denmark, people.person.nationality, United Kingdom
George V, freebase.valuenotation.has_no_value, Official website
3304944.jpg, common.image.appears_in_topic_gallery, George VI
m.04_m9mg, government.government_position_held.appointed_by, George V
George V, people.person.parents, Alexandra of Denmark
Prince John of the United Kingdom, people.person.parents, George V
3304944.jpg, common.image.appears_in_topic_gallery, George V
George V, symbols.name_source.namesakes, Four Seasons Hotel George V
George V, royalty.noble_person.titles, m.04l81ny
George V, freebase.valuenotation.is_reviewed, Country of nationality
George VI, royalty.monarch.royal_line, House of Windsor
George V, common.topic.image, 448px-Kinggeorgev1928.jpg
448px-Kinggeorgev1928.jpg, common.image.appears_in_topic_gallery, George V
Euthanasia, people.cause_of_death.people, George V
Edward VII, royalty.monarch.royal_line, House of Saxe-Coburg and Gotha
Marlborough House, location.location.people_born_here, George V
Alexei Nikolaevich, Tsarevich of Russia, people.person.gender, Male
435px-Edward_VII_UK_and_successors.jpg, common.image.appears_in_topic_gallery, George V
Order of the British Empire, royalty.order_of_chivalry.founders, George V
Mary, Princess Royal and Countess of Harewood, people.person.place_of_birth, Sandringham House
George VI, people.deceased_person.place_of_burial, Windsor Castle
British Raj, royalty.kingdom.rulers, George V
m.0hcc6rx, people.sibling_relationship.sibling, George V
George V, royalty.chivalric_order_member.belongs_to_order, m.05gmcm6
Prince John of the United Kingdom, freebase.valuenotation.has_no_value, Spouse (or domestic partner)
George V, people.person.religion, Church of England
George V, people.person.place_of_birth, Marlborough House
King George Stakes, symbols.namesake.named_after, George V
George V, symbols.heraldry_granting_body.coats_of_arms_granted, m.05fds7p
George V, people.person.parents, Edward VII
Edward VII, people.person.nationality, United Kingdom
George VI, common.topic.image, 435px-Edward_VII_UK_and_successors.jpg
Edward VII, people.person.children, George V
House of Windsor, royalty.royal_line.monarchs_from_this_line, Edward VIII of the United Kingdom
King George V School, symbols.namesake.named_after, George V
House of Saxe-Coburg and Gotha, people.family.country, United Kingdom
United Kingdom, royalty.kingdom.rulers, Edward VII
George V, people.deceased_person.place_of_death, Sandringham House
George V, organization.organization_member.member_of, m.04j4jx3
Mary, Princess Royal and Countess of Harewood, common.topic.image, 3304944.jpg
George VI, people.person.parents, George V
435px-Edward_VII_UK_and_successors.jpg, common.image.appears_in_topic_gallery, Edward VII
George V, common.topic.notable_for, g.1255j1wm0
United Kingdom, royalty.kingdom.rulers, Edward VIII of the United Kingdom
95779660.jpg, common.image.appears_in_topic_gallery, George V
Prince George, fictional_universe.fictional_character.based_on, George V
George V, people.deceased_person.place_of_burial, St George's Chapel, Windsor Castle

Answer: Euthanasia