question: How many books are there in the main Harry Potter series?
answerText: 7
questionEntity.name: Q8337
questionEntity.entityType: entity
questionEntity.label: Harry Potter
questionEntity.mention: Harry Potter series
answerEntity.name: Q43361
answerEntity.label: Harry Potter and the Philosopher's Stone
answerEntity.name: Q47209
answerEntity.label: Harry Potter and the Chamber of Secrets
answerEntity.name: Q47598
answerEntity.label: Harry Potter and the Prisoner of Azkaban
answerEntity.name: Q46751
answerEntity.label: Harry Potter and the Goblet of Fire
answerEntity.name: Q80817
answerEntity.label: Harry Potter and the Order of the Phoenix
answerEntity.name: Q46887
answerEntity.label: Harry Potter and the Half-Blood Prince
answerEntity.name: Q46758
answerEntity.label: Harry Potter and the Deathly Hallows