question: How many games are in the Call of Duty series?
answerText: 4
questionEntity.name: Q192156
questionEntity.entityType: entity
questionEntity.label: Call of Duty
questionEntity.mention: Call of Duty
answerEntity.name: Q846863
answerEntity.label: Call of Duty: United Offensive
answerEntity.name: Q210298
answerEntity.label: Call of Duty 2
answerEntity.name: Q1982333
answerEntity.label: Call of Duty: Finest Hour
answerEntity.name: Q486351
answerEntity.label: Call of Duty: Modern Warfare 2