question: How many vice presidents have gone on to become US president?
answerText: 15
questionEntity.name: Q11699
questionEntity.entityType: entity
questionEntity.label: Vice President of the United States
questionEntity.mention: vice presidents
questionEntity.name: Q11696
questionEntity.entityType: entity
questionEntity.label: President of the United States
questionEntity.mention: US president
answerEntity.name: Q11806
answerEntity.label: John Adams
answerEntity.name: Q11613
answerEntity.label: Harry S Truman
answerEntity.name: Q9640
answerEntity.label: Lyndon B. Johnson
answerEntity.name: Q9588
answerEntity.label: Richard Nixon
answerEntity.name: Q11812
answerEntity.label: Thomas Jefferson
answerEntity.name: Q11820
answerEntity.label: Martin Van Buren
answerEntity.name: Q11881
answerEntity.label: John Tyler
answerEntity.name: Q12306
answerEntity.label: Millard Fillmore
answerEntity.name: Q8612
answerEntity.label: Andrew Johnson
answerEntity.name: Q35498
answerEntity.label: Chester A. Arthur
answerEntity.name: Q33866
answerEntity.label: Theodore Roosevelt
answerEntity.name: Q36023
answerEntity.label: Calvin Coolidge