Question: Who won the most grand slams in mens tennis?
Answer: Roger Federer
Disambiguated annotations:
qaPairs: question: Who won the most grand slams in men's singles tennis?
answer: Roger Federer
question: Who won the most grand slams in men's doubles wheelchair tennis?
answer: Kunieda Shingo
Shingo Kunieda
国枝 慎吾
question: Who won the most grand slams in men's singles wheelchair tennis?
answer: Kunieda Shingo
Shingo Kunieda
国枝 慎吾
question: Who won the most grand slams in men's doubles tennis?
answer: Bob Bryan and Mike Bryan