question: What was the shortest amount of time in days served in office by any president in US history?
answerText: 31
questionEntity.name: Q11696
questionEntity.entityType: entity
questionEntity.label: President of the United States
questionEntity.mention: president
questionEntity.name: Q30
questionEntity.entityType: entity
questionEntity.label: United States of America
questionEntity.mention: US
answerEntity.name: Q11869
answerEntity.label: William Henry Harrison