question: How many Thrawn books were written in the 1990s?
answerText: 5
questionEntity.name: Q1555385
questionEntity.entityType: entity
questionEntity.label: Thrawn trilogy
questionEntity.mention: Thrawn
questionEntity.name: 1990
questionEntity.entityType: date
questionEntity.mention: the 1990s
answerEntity.name: Q2076844
answerEntity.label: Heir to the Empire
answerEntity.name: Q3206513
answerEntity.label: Dark Force Rising
answerEntity.name: Q3204789
answerEntity.label: The Last Command
answerEntity.name: Q742167
answerEntity.label: Specter of the Past
answerEntity.name: Q3561054
answerEntity.label: Vision of the Future