question: How many of the four Grand Slam titles in tennis has Naomi Osaka won at least once?
answerText: 2
questionEntity.name: Q17466583
questionEntity.entityType: entity
questionEntity.label: Naomi Osaka
questionEntity.mention: Naomi Osaka
questionEntity.name: Q102113
questionEntity.entityType: entity
questionEntity.label: Grand Slam of tennis
questionEntity.mention: Grand Slam
questionEntity.name: 4
questionEntity.entityType: cardinal
questionEntity.mention: four
answerEntity.name: Q123577
answerEntity.label: US Open
answerEntity.name: Q60874
answerEntity.label: Australian Open