Who's won more head-to-head tennis matches between each other, Novak Djokovic or Roger Federer?
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Novak Djokovic is a significant person and Roger Federer is a significant person.
Roger Federer and Novak Djokovic are significant people in tennis .
Who's won more head-to-head tennis matches between each other, Novak Djokovic or Roger Federer?</s> [unused1]Novak Djokovic                [unused2] is a significant person and Roger Federer is a significant person.
Who's won more head-to-head tennis matches between each other, Novak Djokovic or Roger Federer?</s>Novak Djokovic is a significant person and Roger Federer is a significant person.
Who's won more head-to-head tennis matches between each other, Novak Djokovic or Roger Federer?</s>Roger Federer and [unused1]Novak Djokovic                [unused2] are significant people in tennis .
Who's won more head-to-head tennis matches between each other, Novak Djokovic or Roger Federer?</s>Roger Federer and Novak Djokovic are significant people in tennis .
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