question: Who served as Canadian prime minister for longer, Kim Campbell or William Mackenzie King?
answerText: William Mackenzie King
questionEntity.name: Q128633
questionEntity.entityType: entity
questionEntity.label: William Lyon Mackenzie King
questionEntity.mention: William Mackenzie King
questionEntity.name: Q16
questionEntity.entityType: entity
questionEntity.label: Canada
questionEntity.mention: Canadian
questionEntity.name: Q128553
questionEntity.entityType: entity
questionEntity.label: Kim Campbell
questionEntity.mention: Kim Campbell
answerEntity.name: Q128633
answerEntity.label: William Lyon Mackenzie King