Task: Question Answering
Input (English): passage: A game consists of a sequence of points played with the same player serving, and is won by the first side to have won at least four points with a margin of two points or more over their opponent. Normally the server's score is always called first and the opponent's score second. Score calling in tennis is unusual in that each point has a corresponding call that is different from its point value.
 question: do you have to serve to score in tennis?
Output (English): No