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: Who was leader of the US during WWII and held the Assistant Secretary position? 
Knowledge Triplets: m.03fx7hy, government.government_position_held.office_position_or_title, President of the United States
m.03fx7_v, government.government_position_held.office_position_or_title, President of the United States
m.04469y1, government.government_position_held.office_holder, James Buchanan
World War II, common.topic.webpage, m.09xq5z0
George Washington, first President of the United States, common.image.appears_in_topic_gallery, Powers of the President of the United States
m.0n3nz1d, government.government_position_held.office_holder, Michael Parker
Harry S. Truman, government.us_vice_president.to_president, Franklin D. Roosevelt
m.03fx7zy, government.government_position_held.office_position_or_title, President of the United States
m.03fx899, government.government_position_held.office_holder, Theodore Roosevelt
m.04466xm, government.government_position_held.office_holder, James Madison
m.0446b9r, government.government_position_held.office_holder, Calvin Coolidge
Allies of World War II, military.military_combatant.includes_allies, United States of America
Andrew Jackson, government.us_president.vice_president, Martin Van Buren
m.09w9d_p, common.webpage.topic, World War II
World War II, common.topic.webpage, m.0cqm322
m.04jx14r, military.military_command.military_conflict, World War II
Assistant Secretary, common.topic.notable_types, Government office category
Warren G. Harding, government.us_president.vice_president, Calvin Coolidge
World War II, radio.radio_subject.programs_with_this_subject, The Army Hour
m.0cqm322, common.webpage.topic, World War II
m.0446b8l, government.government_position_held.office_holder, Dwight D. Eisenhower
m.011qhxxc, government.government_position_held.office_position_or_title, Assistant Secretary of the Navy (Research, Development and Acquisition)
Assistant Secretary of the Navy, government.government_office_or_title.office_holders, m.03q2hyl
World War II, common.topic.webpage, m.0b46p4g
World War II, common.topic.webpage, m.09x5b2d
m.02h7nnj, military.military_command.military_conflict, World War II
m.09yvl19, common.webpage.topic, World War II
World War II, common.topic.webpage, m.09x773p
World War II, common.topic.webpage, m.09xgynp
m.02kzpyv, government.government_position_held.office_position_or_title, President of the United States
President of the United States, common.topic.webpage, m.09ynr7x
m.0b46rff, common.webpage.topic, World War II
Dwight D. Eisenhower, government.us_president.vice_president, Richard Nixon
m.03q2hyl, government.government_position_held.basic_title, Assistant Secretary
Assistant Secretary, common.topic.article, m.09tm92
m.03fx8cf, government.government_position_held.office_holder, Richard Nixon
Assistant Secretary of the Navy, government.government_office_or_title.office_holders, m.03q2h_j
m.03fx7hy, government.government_position_held.office_holder, Grover Cleveland
World War II, common.topic.webpage, m.0b48dsf
m.03fx838, government.government_position_held.office_holder, Woodrow Wilson
World War II, common.topic.webpage, m.09x7jp_
World War II, common.topic.webpage, m.09y0608
m.0446b70, government.government_position_held.office_position_or_title, President of the United States
m.0b6rtrx, common.webpage.topic, World War II
Assistant Secretary, government.government_office_category.officeholders, m.03q2hyl
World War II, common.topic.webpage, m.0b45zcq
George Washington, first President of the United States, common.image.appears_in_topic_gallery, Presidency of George Washington
m.09wl5j0, common.webpage.topic, World War II
m.0446b9j, government.government_position_held.office_position_or_title, President of the United States
World War II, common.topic.article, m.081q5
President of the United States, common.topic.article, m.060dd
m.0b49czw, common.webpage.topic, World War II
Assistant Secretary of the Navy (Research, Development and Acquisition), government.government_office_or_title.office_holders, m.011qhxxc
John F. Kennedy, government.us_president.vice_president, Lyndon B. Johnson
Adolf Hitler, military.military_commander.military_commands, m.02h7nns
m.09y0608, common.webpage.topic, World War II
Josip Broz Tito, military.military_person.participated_in_conflicts, World War II
WW2Montage, common.image.appears_in_topic_gallery, World War II
m.03fx82m, government.government_position_held.office_position_or_title, President of the United States
m.03fx88b, government.government_position_held.office_holder, Warren G. Harding
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
Lyndon B. Johnson, military.military_person.participated_in_conflicts, World War II
m.0446bcc, government.government_position_held.office_position_or_title, President of the United States
m.04s_2dh, government.government_position_held.office_holder, Barack Obama
World War II, common.topic.webpage, m.0b49czw
m.0b49cc7, common.webpage.topic, World War II
m.03fx83v, government.government_position_held.office_holder, Zachary Taylor
President of the United States, common.topic.webpage, m.09y9g34
m.01xrx8q, government.government_position_held.office_holder, George H. W. Bush
m.03fx7j8, government.government_position_held.office_position_or_title, President of the United States
m.09y9l5w, common.webpage.topic, World War II
m.03fx81_, 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, Charles Lee
m.04469xv, government.government_position_held.office_holder, John Tyler
m.03fx82m, government.government_position_held.office_holder, James A. Garfield
World War II, common.topic.webpage, m.09xyz9p
m.03fx817, government.government_position_held.office_holder, Harry S. Truman
Theodore Roosevelt, people.person.profession, Historian
Assistant Secretary, base.schemastaging.context_name.pronunciation, g.125_lh0zt
President of the United States, common.topic.webpage, m.09xm31x
President of the United States, book.book_subject.works, President Pennybaker
President of the United States, common.topic.webpage, m.04lsvx0
m.02h7nns, military.military_command.military_conflict, World War II
United States Secretary of the Army, common.topic.notable_types, Government Office or Title
m.04466zr, government.government_position_held.office_position_or_title, President of the United States
m.03q2h_9, government.government_position_held.office_holder, Franklin D. Roosevelt
President of the United States, book.book_subject.works, The Sound of Leadership: Presidential Communication in the Modern Age
m.09yf8lh, common.webpage.topic, World War II
Remembering Robert S. McNamara through 'The Fog of War', common.resource.annotations, m.09ygg0r
m.04469y1, 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
m.03fx7_v, government.government_position_held.office_holder, Benjamin Harrison
m.0446b9r, government.government_position_held.office_position_or_title, President of the United States
World War II, common.topic.webpage, m.09xrmvz
m.03q2h_j, government.government_position_held.office_holder, Franklin D. Roosevelt
m.02923_6, common.image.appears_in_topic_gallery, World War II
m.03q2h_j, government.government_position_held.appointed_by, Woodrow Wilson
Assistant Secretary, government.government_office_category.officeholders, m.03q2h_j
m.02s9flj, government.government_position_held.office_position_or_title, President of the United States
Theodore Roosevelt, government.politician.government_positions_held, m.03q2hyl
m.09ysx61, common.webpage.topic, World War II
President of the United States, government.government_office_or_title.office_holders, m.03q2h_9
World War II, common.topic.webpage, m.09wgp4k
World War II, common.topic.webpage, m.09ys_2c
Woodrow Wilson, government.politician.government_positions_held, m.03fx838
m.09xq5z0, common.webpage.topic, World War II
World War II, common.topic.webpage, m.09wwvtm
m.03fx87q, government.government_position_held.office_position_or_title, President of the United States
m.03fx85y, government.government_position_held.office_holder, William McKinley
m.09xyz9p, common.webpage.topic, World War II
World War II, common.topic.webpage, m.09yggz2
m.03fx81_, government.government_position_held.office_holder, Lyndon B. Johnson
President of the United States, common.topic.webpage, m.0663zsk
President of the United States, common.topic.webpage, m.09y93hy
George H. W. Bush, military.military_person.participated_in_conflicts, World War II
m.09ydx3t, common.webpage.topic, World War II
President of the United States, common.topic.webpage, m.09ysj6g
World War II, common.topic.webpage, m.09w9d_p
Ronald Reagan, government.us_president.vice_president, George H. W. Bush
Dwight D. Eisenhower, common.topic.notable_types, US President
m.09y8d_t, common.webpage.topic, World War II
World War II, common.topic.webpage, m.09xxnlt
m.03fx899, government.government_position_held.office_position_or_title, President of the United States
m.04469y8, government.government_position_held.office_holder, James K. Polk
m.03fx83k, government.government_position_held.office_holder, William Howard Taft
Charles de Gaulle, military.military_person.participated_in_conflicts, World War II
m.02923_6, common.image.appears_in_topic_gallery, Allies of World War II
m.09x4cx1, common.webpage.topic, World War II
Harry S. Truman, military.military_person.participated_in_conflicts, World War I
m.09wsrnl, common.webpage.topic, World War II
President of the United States, government.government_office_or_title.jurisdiction, United States of America
President of the United States, common.topic.webpage, m.0b46f7h
World War II, common.topic.image, WW2Montage
m.09y4ljx, common.webpage.topic, World War II
United States of America, people.person.nationality, Franklin D. Roosevelt
John F. Kennedy, military.military_person.participated_in_conflicts, World War II
World War II, common.topic.webpage, m.09y8d_t
m.09y2gbs, common.webpage.topic, World War II
World War II, common.topic.webpage, m.09y2gbs
World War II, common.topic.webpage, m.09wsxxn
m.09yjnz5, common.webpage.topic, World War II
m.02h77t6, military.military_command.military_conflict, World War II
m.03q2hyl, government.government_position_held.appointed_by, William McKinley
Assistant Secretary of the Navy, common.topic.notable_types, Government Office or Title
President of the United States, common.topic.notable_for, g.125734vfj
Presidential Command: Power, Leadership, and the Making of Foreign Policy from Richard Nixon to George W. Bush, common.topic.article, m.063t8my
World War II, common.topic.webpage, m.09wsrnl
Carl Gustaf Emil Mannerheim, military.military_person.participated_in_conflicts, World War I
m.04466zr, government.government_position_held.office_holder, Andrew Jackson
World War II, common.topic.webpage, m.09ydx3t
World War II, radio.radio_subject.programs_with_this_subject, D-Day: 40 Years Later
m.0b45zcq, common.webpage.topic, World War II
Ronald Reagan, military.military_person.participated_in_conflicts, World War II
Edward Rydz-Śmigły, military.military_person.participated_in_conflicts, World War II
World War II, common.topic.webpage, m.09yybjl
World War II, common.topic.webpage, m.09xss79
World War I, base.culturalevent.event.entity_involved, Woodrow Wilson
Benito Mussolini, military.military_person.participated_in_conflicts, World War II
US President, common.topic.notable_types, Franklin D. Roosevelt
President of the United States, base.firsts.achievement.firsts, m.04xdfjz
World War II, tv.tv_subject.tv_programs, Anne Frank: The Whole Story
World War II, common.topic.webpage, m.09y6kxc
1940s, common.topic.image, World War II montage image
World War II, common.topic.webpage, m.09yjnz5
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.webpage, m.09yfzdj
m.09x773p, common.webpage.topic, World War II
m.03fx83k, government.government_position_held.office_position_or_title, President of the United States
Assistant Secretary, government.government_office_category.officeholders, m.0n3nz1d
Assistant Secretary, government.government_office_category.officeholders, m.011qhxxc
Adolf Hitler, military.military_person.participated_in_conflicts, World War I
m.02k6vpl, government.government_position_held.office_holder, Bill Clinton
President of the United States, fictional_universe.character_occupation.characters_with_this_occupation, Lt. Cmdr. Robby Jackson
m.0446b8l, government.government_position_held.office_position_or_title, President of the United States
World War II, common.topic.image, m.02923_6
World War II, common.topic.webpage, m.09wl5j0
m.0446bdk, government.government_position_held.office_position_or_title, President of the United States
World War II, common.topic.notable_for, g.125500wpl
World War II, common.topic.webpage, m.09xwgl8
m.02k6vpl, government.government_position_held.office_position_or_title, President of the United States
m.03fx8bt, government.government_position_held.office_holder, Thomas Jefferson
m.0b48g2t, common.webpage.topic, World War II
Maurice Gamelin, military.military_person.participated_in_conflicts, World War I
President of the United States, common.topic.webpage, m.09w6h41
United States Secretary of the Army, government.government_office_or_title.office_holders, m.0n3nz1d
World War II, common.topic.webpage, m.09xr1l4
m.09xrmvz, common.webpage.topic, World War II
m.05rln07, event.speech_or_presentation.speaker_s, Franklin D. Roosevelt
Franklin D. Roosevelt, government.politician.government_positions_held, m.03q2h_9
Charles Lee, common.topic.image, George Washington, first President of the United States
m.09ys_2c, common.webpage.topic, World War II
World War II, common.topic.webpage, m.09y4ljx
World War II, common.topic.webpage, m.09w7nt9
George H. W. Bush, government.us_vice_president.to_president, Ronald Reagan
World War II, common.topic.subject_of, The Price of the Victory
m.09xxnlt, common.webpage.topic, World War II
Living with the Dead: W. Eugene Smith and World War II, common.topic.article, m.04lmj_t
Assistant Secretary, government.government_office_category.officeholders, m.03q2h_j
World War II, common.topic.webpage, m.09ygg0r
World War II, common.topic.webpage, m.09yvl19
President of the United States, common.topic.webpage, m.0hnjbwk
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
World War II montage image, common.image.appears_in_topic_gallery, 1940s
m.09yfzdj, common.webpage.topic, World War II
United States of America, military.military_combatant.belongs_to_combatant_group, Allies of World War II
World War II, common.topic.webpage, m.09y5hqr
Living with the Dead: W. Eugene Smith and World War II, common.topic.webpage, m.04lmj_d
World War II, common.topic.webpage, m.09wwp1v
President of the United States, freebase.type_profile.equivalent_topic, US President
m.09wsxxn, common.webpage.topic, World War II
m.09xwgl8, common.webpage.topic, World War II
m.09y5hqr, common.webpage.topic, World War II
Franklin D. Roosevelt, government.politician.government_positions_held, m.03q2h_j
World War II, common.topic.webpage, m.09y9l5w
m.09w41xr, common.webpage.topic, World War II
World War II, common.topic.webpage, m.09x_3c3
Władysław Sikorski, military.military_person.participated_in_conflicts, World War II
World War II, time.event.included_in_event, 20th century
m.0446b9j, government.government_position_held.office_holder, Herbert Hoover
George Washington, first President of the United States, common.image.appears_in_topic_gallery, President of the United States
World War II, event.speech_or_presentation.speech_topic, m.05rln07
m.03fx88b, government.government_position_held.office_position_or_title, President of the United States
m.011qhxxc, government.government_position_held.office_holder, Sean Stackley
Dwight D. Eisenhower, military.military_person.participated_in_conflicts, Vietnam War
World War II, time.event.included_in_event, 1940s
Dwight D. Eisenhower, people.person.nationality, United States of America
m.09x_3c3, common.webpage.topic, World War II
m.09y6kxc, common.webpage.topic, World War II
Dwight D. Eisenhower, military.military_person.participated_in_conflicts, World War II
Franklin D. Roosevelt, government.us_president.vice_president, Harry S. Truman
President of the United States, fictional_universe.character_occupation.characters_with_this_occupation, President Thomas Westwood
m.09xgynp, common.webpage.topic, World War II
m.02h6phn, government.government_position_held.office_position_or_title, President of the United States
Theodore Roosevelt, government.us_vice_president.to_president, William McKinley
World War II, common.topic.webpage, m.0b48g2t
m.03fx7zy, government.government_position_held.office_holder, Gerald Ford
m.03q2h_9, government.government_position_held.office_position_or_title, President of the United States
Assistant Secretary of the Navy (Research, Development and Acquisition), common.topic.notable_types, Government Office or Title
Winston Churchill, military.military_person.participated_in_conflicts, World War I
m.03fx88m, government.government_position_held.office_position_or_title, President of the United States
m.03fx817, government.government_position_held.office_position_or_title, President of the United States
m.0n3nz1d, government.government_position_held.office_position_or_title, United States Secretary of the Army
World War II, common.topic.webpage, m.09wgp7j
m.0446bdb, government.government_position_held.office_holder, Abraham Lincoln
Gerald Ford, military.military_person.participated_in_conflicts, World War II
George Washington, first President of the United States, common.image.size, m.02f0j1t
Theodore Roosevelt, government.politician.government_positions_held, m.03fx899
m.011qhxxc, government.government_position_held.appointed_by, George W. Bush
m.02hz5r6, 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
George S. Patton, military.military_person.participated_in_conflicts, World War II
m.0b46p4g, common.webpage.topic, World War II
m.09x5b2d, common.webpage.topic, World War II
m.03fx87q, government.government_position_held.office_holder, William Henry Harrison
Maurice Gamelin, military.military_person.participated_in_conflicts, World War II
Assistant Secretary, common.topic.notable_for, g.1255z2z6q
m.09yggz2, common.webpage.topic, World War II
m.040b_7k, government.government_position_held.office_position_or_title, President of the United States
m.0b48dsf, common.webpage.topic, World War II
m.03q2hyl, government.government_position_held.office_position_or_title, Assistant Secretary of the Navy
m.04lmj_d, common.webpage.topic, Living with the Dead: W. Eugene Smith and World War II
Charles de Gaulle, military.military_person.participated_in_conflicts, World War I
m.04469y8, government.government_position_held.office_position_or_title, President of the United States
m.03q2hyl, government.government_position_held.office_holder, Theodore Roosevelt
m.0b475k_, common.webpage.topic, World War II
World War II, common.topic.webpage, m.09ysx61
m.04466xb, government.government_position_held.office_holder, John Adams
Dwight D. Eisenhower, military.military_person.participated_in_conflicts, World War I
m.03fx8cf, government.government_position_held.office_position_or_title, President of the United States
m.03fx8bt, 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, The Imperial Presidency
m.09ygg0r, common.webpage.topic, World War II
m.04466xz, government.government_position_held.office_holder, James Monroe
Archibald Wavell, 1st Earl Wavell, military.military_person.participated_in_conflicts, World War II
World War II, common.topic.webpage, m.09x4cx1
m.09wgp4k, common.webpage.topic, World War II
Richard Nixon, military.military_person.participated_in_conflicts, World War II
m.09xr1l4, common.webpage.topic, World War II
Dwight D. Eisenhower, government.politician.government_positions_held, m.0446b8l
m.03fx7j8, government.government_position_held.office_holder, Grover Cleveland
William Henry Harrison, government.us_president.vice_president, John Tyler
World War II, common.topic.webpage, m.0b475k_
m.02h7nn7, military.military_command.military_conflict, World War II
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
World War II, common.topic.webpage, m.09ybsfr
m.011qhxxc, government.government_position_held.basic_title, Assistant Secretary
m.04466tx, government.government_position_held.office_holder, Andrew Johnson
m.04469yh, 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, Town Destroyer
President of the United States, common.topic.webpage, m.09xgz2n
World War II, base.morelaw.war.peace_treaty, Sino-American Cooperative Organization
m.09yybjl, common.webpage.topic, World War II
m.0446b70, government.government_position_held.office_holder, Jimmy Carter
President of the United States, common.topic.webpage, m.0b464_j
m.040b_7k, government.government_position_held.office_holder, John Quincy Adams
m.01xrx8q, government.government_position_held.office_position_or_title, President of the United States
m.09x7jp_, common.webpage.topic, World War II
m.09w7qyh, common.webpage.topic, World War II
m.09xss79, common.webpage.topic, World War II
World War II, common.topic.webpage, m.09wxv0j
m.09wwvtm, common.webpage.topic, World War II
George Washington, first President of the United States, common.image.appears_in_topic_gallery, George Washington
m.04466xb, government.government_position_held.office_position_or_title, President of the United States
m.04s_2dh, government.government_position_held.office_position_or_title, President of the United States
m.09wgp7j, common.webpage.topic, World War II
m.0n3nz1d, government.government_position_held.appointed_by, George W. Bush
m.09ygg0r, common.webpage.resource, Remembering Robert S. McNamara through 'The Fog of War'
World War II, common.topic.webpage, m.09yj2jt
m.03q2h_j, government.government_position_held.office_position_or_title, Assistant Secretary of the Navy
m.03fx85y, government.government_position_held.office_position_or_title, President of the United States
m.02hz5r6, government.government_position_held.office_holder, John F. Kennedy
Allies of World War II, common.topic.image, m.02923_6
m.04469xv, government.government_position_held.office_position_or_title, President of the United States
m.09ybsfr, common.webpage.topic, World War II
m.09wwp1v, common.webpage.topic, World War II
World War II, common.topic.webpage, m.0b6rtrx
Living with the Dead: W. Eugene Smith and World War II, common.topic.notable_for, g.125fv4np3
World War II, common.topic.webpage, m.09yf8lh
President of the United States, common.topic.webpage, m.09ygxjq
m.09yj2jt, common.webpage.topic, World War II
m.04469xf, government.government_position_held.office_position_or_title, President of the United States
m.02h7nns, military.military_command.military_commander, Adolf Hitler
Tadeusz Bór-Komorowski, military.military_person.participated_in_conflicts, World War II
President of the United States, common.topic.webpage, m.09xlnpm
m.04466tx, government.government_position_held.office_position_or_title, President of the United States
Carl Gustaf Emil Mannerheim, military.military_person.participated_in_conflicts, World War II
m.03q2h_j, government.government_position_held.basic_title, Assistant Secretary
Herbert Hoover, government.politician.government_positions_held, m.0446b9j
Living with the Dead: W. Eugene Smith and World War II, common.topic.notable_types, Exhibition
m.03fx88m, government.government_position_held.office_holder, Ulysses S. Grant
m.02h6phn, government.government_position_held.office_holder, George W. Bush
Władysław Anders, military.military_person.participated_in_conflicts, World War II
m.03q2h_j, government.politician.government_positions_held, Franklin D. Roosevelt
Edward Rydz-Śmigły, military.military_person.participated_in_conflicts, World War I
m.03fx8c3, government.government_position_held.office_position_or_title, President of the United States
World War II, book.periodical_subject.periodicals, The War Illustrated
m.03fx83v, government.government_position_held.office_position_or_title, President of the United States
World War II, common.topic.webpage, m.09w7qyh
m.03fx8c3, government.government_position_held.office_holder, Rutherford B. Hayes
World War II, common.topic.webpage, m.0b49cc7
m.02kzpyv, government.government_position_held.office_holder, Ronald Reagan
President of the United States, common.topic.image, George Washington, first President of the United States
m.0446bdb, government.government_position_held.office_position_or_title, President of the United States
World War II, common.topic.webpage, m.0b46rff
World War II, common.topic.webpage, m.09w41xr
Richard Nixon, government.us_vice_president.to_president, Dwight D. Eisenhower
William McKinley, government.us_president.vice_president, Theodore Roosevelt
m.0n3nz1d, government.government_position_held.basic_title, Assistant Secretary
m.09wxv0j, common.webpage.topic, World War II
m.09w7nt9, common.webpage.topic, World War II
1940s, time.event.includes_event, World War II

Answer: Franklin D. Roosevelt