question: From which university did the 28th U.S. president earn his Ph.D.?
answerText: Johns Hopkins University
questionEntity.name: Q30
questionEntity.entityType: entity
questionEntity.label: United States of America
questionEntity.mention: U.S.
questionEntity.name: Q752297
questionEntity.entityType: entity
questionEntity.label: Doctor of Philosophy
questionEntity.mention: Ph.D.
questionEntity.name: 28
questionEntity.entityType: ordinal
questionEntity.mention: 28th
answerEntity.name: Q193727
answerEntity.label: Johns Hopkins University