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: Which politician, who ended their government position early, was the president of the United States during WW2? 
Knowledge Triplets: Richard Nixon, people.person.nationality, United States of America
President of the United States, government.government_office_or_title.jurisdiction, United States of America
Ulysses S. Grant, government.politician.government_positions_held, m.03fx88m
George Washington, government.us_president.vice_president, John Adams
President of the United States, fictional_universe.character_occupation.characters_with_this_occupation, Conrad Dalton
m.02kzpyv, government.government_position_held.office_position_or_title, President of the United States
John F. Kennedy, government.us_president.vice_president, Lyndon B. Johnson
Woodrow Wilson, common.topic.notable_types, US President
Josiah Bartlet, fictional_universe.fictional_character.occupation, President of the United States
Ulysses S. Grant, fictional_universe.fictional_character.occupation, President of the United States
President of the United States, common.topic.webpage, m.0hnjbwk
President of the United States, government.government_office_or_title.office_holders, m.03fx83v
Presidential Command: Power, Leadership, and the Making of Foreign Policy from Richard Nixon to George W. Bush, common.topic.image, command.jpg
Lyndon B. Johnson, government.us_vice_president.to_president, John F. Kennedy
President of the United States, book.book_subject.works, Madam President
Richard Nixon, military.military_person.participated_in_conflicts, World War II
Theodore Roosevelt, government.us_vice_president.to_president, William McKinley
President of the United States, government.government_office_or_title.office_holders, m.04469yh
President of the United States, fictional_universe.character_occupation.characters_with_this_occupation, Matt Santos
World War I, base.culturalevent.event.entity_involved, Woodrow Wilson
President of the United States, fictional_universe.character_occupation.characters_with_this_occupation, Mackenzie Allen
President of the United States, government.government_office_or_title.office_holders, m.04469y1
James Buchanan, common.topic.notable_types, US President
George W. Bush, people.person.profession, Politician
George Washington, first President of the United States, common.image.appears_in_topic_gallery, President of the United States
Ronald Reagan, people.person.nationality, United States of America
m.0446bdb, government.government_position_held.office_position_or_title, President of the United States
President of the United States, common.topic.webpage, m.09xgz2n
Dwight D. Eisenhower, government.politician.government_positions_held, m.0446b8l
Andrew Jackson, government.politician.government_positions_held, m.04466zr
President of the United States, government.government_office_or_title.office_holders, m.03fx7j8
President of the United States, government.government_office_or_title.office_holders, m.0446b9j
President of the United States, common.topic.webpage, m.09wvy_x
President of the United States, common.topic.webpage, m.09ynr7x
m.03fx82m, government.government_position_held.office_position_or_title, President of the United States
President of the United States, government.government_office_or_title.office_holders, m.03fx8c3
m.03fx899, government.government_position_held.office_holder, Theodore Roosevelt
Rutherford B. Hayes, common.topic.notable_types, US President
George Washington, first President of the United States, common.image.appears_in_topic_gallery, Powers of the President of the United States
Richard Nixon, common.topic.notable_types, US President
United States of America, government.governmental_jurisdiction.government_positions, President of the United States
Presidential Command: Power, Leadership, and the Making of Foreign Policy from Richard Nixon to George W. Bush, common.topic.notable_types, Book
Thomas Jefferson, common.topic.notable_types, US President
Presidential Command: Power, Leadership, and the Making of Foreign Policy from Richard Nixon to George W. Bush, book.written_work.subjects, President of the United States
Presidential Command: Power, Leadership, and the Making of Foreign Policy from Richard Nixon to George W. Bush, book.book.genre, Non-fiction
President of the United States, business.employer.employees, m.0whvvj4
President of the United States, government.government_office_or_title.office_holders, m.04s_2dh
Bill Clinton, government.politician.government_positions_held, m.02k6vpl
m.04lsvx0, common.webpage.topic, President of the United States
President of the United States, book.book_subject.works, The American Leadership Tradition: Moral Vision from Washington to Clinton
m.03q2h_9, government.government_position_held.office_holder, Franklin D. Roosevelt
m.04466xm, government.government_position_held.office_position_or_title, President of the United States
m.04469y1, government.government_position_held.office_position_or_title, President of the United States
m.09y9g34, common.webpage.topic, President of the United States
m.03fx7j8, government.government_position_held.office_position_or_title, President of the United States
m.0b464_j, common.webpage.topic, President of the United States
m.09xgz2n, common.webpage.topic, President of the United States
m.02hz5r6, government.government_position_held.office_position_or_title, President of the United States
m.04466zr, government.government_position_held.office_position_or_title, President of the United States
WW2Montage, common.image.size, m.04246bq
Jack Ryan, fictional_universe.fictional_character.occupation, President of the United States
President of the United States, government.government_office_or_title.office_holders, m.04466xm
John Adams, government.us_vice_president.to_president, George Washington
Dwight D. Eisenhower, government.us_president.vice_president, Richard Nixon
m.03fx8cf, government.government_position_held.office_holder, Richard Nixon
President Thomas Westwood, fictional_universe.fictional_character.occupation, President of the United States
President of the United States, book.book_subject.works, Otto Runs for President
President of the United States, government.government_office_or_title.office_holders, m.04466tx
Warren G. Harding, government.us_president.vice_president, Calvin Coolidge
Dwight D. Eisenhower, military.military_person.participated_in_conflicts, World War II
George W. Bush, government.politician.government_positions_held, m.02h6phn
Franklin Pierce, government.politician.government_positions_held, m.0446bdk
m.03fx8bt, government.government_position_held.office_position_or_title, President of the United States
Grover Cleveland, government.politician.government_positions_held, m.03fx7hy
Mackenzie Allen, fictional_universe.fictional_character.occupation, President of the United States
George W. Bush, common.topic.notable_types, US President
m.03fx88b, government.government_position_held.office_position_or_title, President of the United States
Woodrow Wilson, government.politician.government_positions_held, m.03fx838
President of the United States, book.book_subject.works, The Moral Rhetoric of American Presidents
President of the United States, fictional_universe.character_occupation.characters_with_this_occupation, Lt. Cmdr. Robby Jackson
James Madison, government.politician.government_positions_held, m.04466xm
World War II, event.speech_or_presentation.speech_topic, m.05rln07
Theodore Roosevelt, common.topic.notable_types, US President
John Tyler, government.politician.government_positions_held, m.04469xv
Lt. Cmdr. Robby Jackson, fictional_universe.fictional_character.occupation, President of the United States
Grover Cleveland, common.topic.notable_types, US President
m.05rln07, event.speech_or_presentation.speaker_s, Franklin D. Roosevelt
John Quincy Adams, government.politician.government_positions_held, m.040b_7k
George H. W. Bush, government.politician.government_positions_held, m.01xrx8q
President of the United States, government.government_office_or_title.office_holders, m.03fx83k
Woodrow Wilson, people.person.profession, Historian
William Henry Harrison, government.us_president.vice_president, John Tyler
Calvin Coolidge, government.politician.government_positions_held, m.0446b9r
President of the United States, common.topic.webpage, m.05ckhcc
Warren G. Harding, government.politician.government_positions_held, m.03fx88b
George Washington, first President of the United States, common.image.appears_in_topic_gallery, Charles Lee
President of the United States, fictional_universe.character_occupation.characters_with_this_occupation, Jack Ryan
George Washington, first President of the United States, common.image.size, m.02f0j1t
President of the United States, government.government_office_or_title.office_holders, m.03q2h_9
Richard Nixon, government.politician.government_positions_held, m.03fx8cf
m.03fx81_, government.government_position_held.office_holder, Lyndon B. Johnson
Millard Fillmore, government.us_vice_president.to_president, Zachary Taylor
James Monroe, government.politician.government_positions_held, m.04466xz
President of the United States, common.topic.webpage, m.0b464_j
m.0446b9r, government.government_position_held.office_position_or_title, President of the United States
President of the United States, common.topic.webpage, m.0663zsk
m.03fx817, government.government_position_held.office_position_or_title, President of the United States
Martin Van Buren, government.us_vice_president.to_president, Andrew Jackson
m.03fx85y, government.government_position_held.office_position_or_title, President of the United States
Benjamin Harrison, government.politician.government_positions_held, m.03fx7_v
Harry S. Truman, government.us_vice_president.to_president, Franklin D. Roosevelt
Jimmy Carter, common.topic.notable_types, US President
John Tyler, government.us_vice_president.to_president, William Henry Harrison
m.02k6vpl, government.government_position_held.office_position_or_title, President of the United States
Dwight D. Eisenhower, military.military_person.participated_in_conflicts, World War I
President of the United States, government.government_office_or_title.office_holders, m.04466zr
President of the United States, common.topic.webpage, m.09xm31x
President of the United States, government.government_office_or_title.office_holders, m.03fx817
m.0663zsk, common.webpage.topic, President of the United States
m.0b46f7h, common.webpage.topic, President of the United States
m.04s_2dh, government.government_position_held.office_position_or_title, President of the United States
George H. W. Bush, military.military_person.participated_in_conflicts, World War II
President of the United States, common.topic.notable_for, g.125734vfj
Ronald Reagan, common.topic.notable_types, US President
President of the United States, base.ontologies.ontology_class.equivalent_classes, m.0dj2gvv
Abraham Lincoln, government.us_president.vice_president, Andrew Johnson
President of the United States, government.government_office_or_title.office_holders, m.04469y8
Woodrow Wilson, people.person.profession, Politician
President of the United States, government.government_office_or_title.office_holders, m.03fx838
President of the United States, base.ontologies.ontology_instance.equivalent_instances, m.07nflbk
William Henry Harrison, government.politician.government_positions_held, m.03fx87q
President of the United States, book.book_subject.works, President Pennybaker
President of the United States, fictional_universe.character_occupation.characters_with_this_occupation, Josiah Bartlet
President of the United States, book.book_subject.works, First Off the Tee: Presidential Hackers, Duffers, and Cheaters From Taft to Bush
James A. Garfield, government.us_president.vice_president, Chester A. Arthur
Conrad Dalton, fictional_universe.fictional_character.occupation, President of the United States
George Washington, common.topic.notable_types, US President
m.09w6h41, common.webpage.topic, President of the United States
Richard Nixon, government.us_vice_president.to_president, Dwight D. Eisenhower
m.0446b8l, government.government_position_held.office_position_or_title, President of the United States
James Buchanan, government.politician.government_positions_held, m.04469y1
President of the United States, government.government_office_or_title.office_holders, m.03fx81_
Charles Lee, common.topic.image, George Washington, first President of the United States
Presidential Command: Power, Leadership, and the Making of Foreign Policy from Richard Nixon to George W. Bush, common.topic.notable_for, g.125f9cm5z
James Monroe, common.topic.notable_types, US President
m.04469yh, government.government_position_held.office_position_or_title, President of the United States
Ronald Reagan, military.military_person.participated_in_conflicts, World War II
John F. Kennedy, common.topic.notable_types, US President
m.03fx81_, government.government_position_held.office_position_or_title, President of the United States
George H. W. Bush, people.person.profession, Politician
Franklin D. Roosevelt, common.topic.notable_types, US President
George Washington, government.politician.government_positions_held, m.02s9flj
United States of America, government.governmental_jurisdiction.government_positions, Vice President of the United States
President of the United States, government.government_office_or_title.office_holders, m.03fx899
President of the United States, freebase.type_profile.equivalent_topic, US President
Lyndon B. Johnson, military.military_person.participated_in_conflicts, World War II
President of the United States, government.government_office_or_title.office_holders, m.02hz5r6
m.04466tx, government.government_position_held.office_position_or_title, President of the United States
George Washington, common.topic.image, George Washington, first President of the United States
m.09ysj6g, common.webpage.topic, President of the United States
m.02h6phn, government.government_position_held.office_position_or_title, President of the United States
m.03fx838, government.government_position_held.office_position_or_title, President of the United States
President of the United States, book.book_subject.works, The Rhetorical Presidency
William Howard Taft, people.person.nationality, United States of America
President of the United States, government.government_office_or_title.office_holders, m.03fx7_v
US President, freebase.type_profile.equivalent_topic, President of the United States
Thomas Jefferson, government.us_vice_president.to_president, John Adams
Herbert Hoover, common.topic.notable_types, US President
John Adams, government.politician.government_positions_held, m.04466xb
m.03fx7_v, government.government_position_held.office_position_or_title, President of the United States
m.03fx838, government.government_position_held.office_holder, Woodrow Wilson
Theodore Roosevelt, people.person.profession, Politician
Franklin D. Roosevelt, people.person.profession, Politician
President of the United States, common.topic.webpage, m.09y93hy
George Washington, first President of the United States, common.image.appears_in_topic_gallery, The Imperial Presidency
Zachary Taylor, government.us_president.vice_president, Millard Fillmore
Lyndon B. Johnson, government.politician.government_positions_held, m.03fx81_
President of the United States, base.firsts.achievement.firsts, m.04xdfjz
m.09y93hy, common.webpage.topic, President of the United States
Gerald Ford, common.topic.notable_types, US President
President of the United States, book.book_subject.works, The Sound of Leadership: Presidential Communication in the Modern Age
m.04466xb, government.government_position_held.office_position_or_title, President of the United States
William McKinley, government.us_president.vice_president, Theodore Roosevelt
m.09wvy_x, common.webpage.topic, President of the United States
Theodore Roosevelt, people.person.nationality, United States of America
Adolf Hitler, people.person.profession, Politician
President of the United States, government.government_office_or_title.office_holders, m.04469xf
Richard Nixon, people.person.profession, Politician
WW2Montage, common.image.appears_in_topic_gallery, World War II
President of the United States, freebase.equivalent_topic.equivalent_type, US President
m.03fx83v, government.government_position_held.office_position_or_title, President of the United States
President of the United States, government.government_office_or_title.office_holders, m.04469xv
Woodrow Wilson, people.person.nationality, United States of America
Barack Obama, government.politician.government_positions_held, m.04s_2dh
US President, common.topic.notable_types, Franklin D. Roosevelt
Theodore Roosevelt, government.politician.government_positions_held, m.03fx899
President of the United States, government.government_office_or_title.office_holders, m.03fx8cf
m.040b_7k, government.government_position_held.office_position_or_title, President of the United States
George Washington, first President of the United States, common.image.appears_in_topic_gallery, Presidency of George Washington
President of the United States, government.government_office_or_title.office_holders, m.03fx82m
Martin Van Buren, government.politician.government_positions_held, m.04469xf
m.0446b9j, government.government_position_held.office_position_or_title, President of the United States
Władysław Sikorski, military.military_person.participated_in_conflicts, World War II
m.03q2h_9, government.government_position_held.office_holder, Franklin D. Roosevelt
Thomas Jefferson, government.politician.government_positions_held, m.03fx8bt
President of the United States, common.topic.webpage, m.09xlnpm
m.0hnjbwk, common.webpage.topic, President of the United States
William Howard Taft, government.politician.government_positions_held, m.03fx83k
President of the United States, book.book_subject.works, Max for President
President of the United States, government.government_office_or_title.office_holders, m.03fx7zy
Abraham Lincoln, government.politician.government_positions_held, m.0446bdb
m.01xrx8q, government.government_position_held.office_holder, George H. W. Bush
President of the United States, book.book_subject.works, The Reader's Companion to the American Presidency
Andrew Johnson, government.us_vice_president.to_president, Abraham Lincoln
Andrew Johnson, government.politician.government_positions_held, m.04466tx
John Adams, common.topic.notable_types, US President
James K. Polk, government.politician.government_positions_held, m.04469y8
Harry S. Truman, government.politician.government_positions_held, m.03fx817
Presidential Command: Power, Leadership, and the Making of Foreign Policy from Richard Nixon to George W. Bush, book.written_work.subjects, Politics of the United States
World War II, common.topic.image, WW2Montage
President of the United States, government.government_office_or_title.office_holders, m.0446b8l
President of the United States, government.government_office_or_title.office_holders, m.040b_7k
Presidential Command: Power, Leadership, and the Making of Foreign Policy from Richard Nixon to George W. Bush, book.written_work.author, Peter Rodman
William McKinley, common.topic.notable_types, US President
Matt Santos, fictional_universe.fictional_character.occupation, President of the United States
Mediterranean and Middle East theatre of World War II, base.culturalevent.event.entity_involved, Dwight D. Eisenhower
Dwight D. Eisenhower, common.topic.notable_types, US President
m.03fx83k, government.government_position_held.office_holder, William Howard Taft
Warren G. Harding, people.person.profession, Politician
President of the United States, common.topic.image, George Washington, first President of the United States
President of the United States, common.topic.webpage, m.09ysj6g
President of the United States, government.government_office_or_title.office_holders, m.0446b9r
m.03fx83k, government.government_position_held.office_position_or_title, President of the United States
Warren G. Harding, common.topic.notable_types, US President
m.03fx8c3, government.government_position_held.office_position_or_title, President of the United States
Gerald Ford, military.military_person.participated_in_conflicts, World War II
m.09ygxjq, common.webpage.topic, President of the United States
m.03fx87q, government.government_position_held.office_position_or_title, President of the United States
President of the United States, government.government_office_or_title.jurisdiction, United States of America
President of the United States, book.book_subject.works, Presidential Command: Power, Leadership, and the Making of Foreign Policy from Richard Nixon to George W. Bush
m.09ynr7x, common.webpage.topic, President of the United States
m.04469y8, government.government_position_held.office_position_or_title, President of the United States
President of the United States, base.schemastaging.context_name.pronunciation, g.125_lw0zw
James A. Garfield, government.politician.government_positions_held, m.03fx82m
President Pennybaker, book.written_work.subjects, President of the United States
President of the United States, base.firsts.achievement.firsts, m.04wrx4g
President of the United States, government.government_office_or_title.category, President
President of the United States, government.government_office_or_title.office_holders, m.0446b70
President of the United States, government.government_office_or_title.office_holders, m.0446bcc
Dwight D. Eisenhower, people.person.nationality, United States of America
President of the United States, fictional_universe.character_occupation.characters_with_this_occupation, Abraham Lincoln
Gerald Ford, government.politician.government_positions_held, m.03fx7zy
Zachary Taylor, government.politician.government_positions_held, m.03fx83v
President of the United States, common.topic.image, Official portrait of Barack Obama
m.03fx7hy, government.government_position_held.office_position_or_title, President of the United States
President of the United States, government.government_office_or_title.office_holders, m.03fx85y
President of the United States, government.government_office_or_title.office_holders, m.03q2h_9
m.03fx88m, government.government_position_held.office_position_or_title, President of the United States
m.01xrx8q, government.government_position_held.office_position_or_title, President of the United States
President of the United States, common.topic.webpage, m.09y9g34
Franklin D. Roosevelt, government.politician.government_positions_held, m.03q2h_9
George W. Bush, people.person.nationality, United States of America
President of the United States, book.book_subject.works, Presidential Leadership: Rating the Best and the Worst in the White House
Abraham Lincoln, fictional_universe.fictional_character.occupation, President of the United States
Bill Clinton, common.topic.notable_types, US President
m.0446b70, government.government_position_held.office_position_or_title, President of the United States
President of the United States, common.topic.webpage, m.09ygxjq
m.03fx899, government.government_position_held.office_position_or_title, President of the United States
Benito Mussolini, military.military_person.participated_in_conflicts, World War II
President of the United States, people.appointed_role.appointment, m.0c1svhh
President of the United States, government.government_office_or_title.office_holders, m.04466xz
President of the United States, government.government_office_or_title.office_holders, m.03fx8bt
m.03fx8cf, government.government_position_held.office_position_or_title, President of the United States
President of the United States, base.firsts.achievement.firsts, m.04wrwjv
James Madison, common.topic.notable_types, US President
Calvin Coolidge, common.topic.notable_types, US President
Ronald Reagan, people.person.profession, Politician
m.0446bdk, government.government_position_held.office_position_or_title, President of the United States
Herbert Hoover, government.politician.government_positions_held, m.0446b9j
President of the United States, base.schemastaging.context_name.plural, m.0w0qt9b
President of the United States, government.government_office_or_title.office_holders, m.03fx88m
President of the United States, common.topic.webpage, m.09w6pyk
President of the United States, common.topic.webpage, m.09w6h41
President of the United States, book.book_subject.works, White House Ghosts: Presidents and Their Speechwriters
George Washington, first President of the United States, common.image.appears_in_topic_gallery, George Washington
Rutherford B. Hayes, government.politician.government_positions_held, m.03fx8c3
President of the United States, government.government_office_or_title.office_holders, m.0446bdb
George H. W. Bush, people.person.nationality, United States of America
President of the United States, common.topic.notable_types, Government Office or Title
President of the United States, fictional_universe.character_occupation.characters_with_this_occupation, President Thomas Westwood
m.09xlnpm, common.webpage.topic, President of the United States
Franklin D. Roosevelt, government.us_president.vice_president, Harry S. Truman
George H. W. Bush, common.topic.notable_types, US President
President of the United States, common.topic.article, m.060dd
m.03q2h_9, government.government_position_held.office_position_or_title, President of the United States
m.09xm31x, common.webpage.topic, President of the United States
John F. Kennedy, government.politician.government_positions_held, m.02hz5r6
Calvin Coolidge, government.us_vice_president.to_president, Warren G. Harding
John Adams, government.us_president.vice_president, Thomas Jefferson
John F. Kennedy, military.military_person.participated_in_conflicts, World War II
Charles de Gaulle, military.military_person.participated_in_conflicts, World War II
Lyndon B. Johnson, people.person.profession, Politician
President of the United States, government.government_office_or_title.office_holders, m.01xrx8q
m.04469xv, government.government_position_held.office_position_or_title, President of the United States
United States of America, people.person.nationality, Franklin D. Roosevelt
Gerald Ford, government.us_vice_president.to_president, Richard Nixon
m.09w6pyk, common.webpage.topic, President of the United States
President of the United States, government.government_office_or_title.office_holders, m.02k6vpl
President of the United States, government.government_office_or_title.office_holders, m.03fx7hy
President of the United States, government.government_office_or_title.office_holders, m.02kzpyv
m.04469xf, government.government_position_held.office_position_or_title, President of the United States
George H. W. Bush, government.us_vice_president.to_president, Ronald Reagan
William Henry Harrison, common.topic.notable_types, US President
President of the United States, government.government_office_or_title.office_holders, m.03fx88b
President of the United States, government.government_office_or_title.office_holders, m.04466xb
Lyndon B. Johnson, common.topic.notable_types, US President
Lyndon B. Johnson, people.person.nationality, United States of America
President of the United States, government.government_office_or_title.office_holders, m.03fx87q
Martin Van Buren, common.topic.notable_types, US President
Richard Nixon, government.us_president.vice_president, Gerald Ford
President of the United States, base.firsts.achievement.firsts, m.08ntjg4
President of the United States, common.topic.webpage, m.0b46f7h
Andrew Johnson, common.topic.notable_types, US President
m.05ckhcc, common.webpage.topic, President of the United States
Jimmy Carter, government.politician.government_positions_held, m.0446b70
m.02h6phn, government.government_position_held.office_holder, George W. Bush
m.0446b8l, government.government_position_held.office_holder, Dwight D. Eisenhower
George Washington, first President of the United States, common.image.appears_in_topic_gallery, Town Destroyer
President of the United States, government.government_office_or_title.office_holders, m.02h6phn
Dwight D. Eisenhower, people.person.profession, Politician
President of the United States, fictional_universe.character_occupation.characters_with_this_occupation, Ulysses S. Grant
Grover Cleveland, government.politician.government_positions_held, m.03fx7j8
Ronald Reagan, government.us_president.vice_president, George H. W. Bush
Ronald Reagan, government.politician.government_positions_held, m.02kzpyv
m.02s9flj, government.government_position_held.office_position_or_title, President of the United States
m.04466xz, government.government_position_held.office_position_or_title, President of the United States
President of the United States, common.topic.webpage, m.04lsvx0
m.03fx7zy, government.government_position_held.office_position_or_title, President of the United States
President of the United States, government.government_office_or_title.office_holders, m.02s9flj
William McKinley, government.politician.government_positions_held, m.03fx85y
William Howard Taft, common.topic.notable_types, US President
President of the United States, government.government_office_or_title.office_holders, m.0446bdk
m.0446bcc, government.government_position_held.office_position_or_title, President of the United States
Andrew Jackson, government.us_president.vice_president, Martin Van Buren
John Quincy Adams, common.topic.notable_types, US President
Presidential Command: Power, Leadership, and the Making of Foreign Policy from Richard Nixon to George W. Bush, common.topic.article, m.063t8my

Answer: Franklin D. Roosevelt