question: How many US vice presidents have gone on to become president?
answerText: 9
questionEntity.name: Q11696
questionEntity.entityType: entity
questionEntity.label: President of the United States
questionEntity.mention: president
questionEntity.name: Q11699
questionEntity.entityType: entity
questionEntity.label: Vice President of the United States
questionEntity.mention: US vice presidents
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
answerEntity.name: Q11613
answerEntity.label: Harry S Truman
answerEntity.name: Q9640
answerEntity.label: Lyndon B. Johnson
answerEntity.name: Q9582
answerEntity.label: Gerald Ford