i enjoy watching tennis and golf on tv.
[{"role": "system", "content": "Tennis is a racket sport that can be played individually against a single opponent (singles) or between two teams of two players each (doubles). Each player uses a tennis racket that is strung with cord to strike a hollow rubber ball covered with felt over or around a net and into the opponent's court. The object of the game is to play the ball in such a way that the opponent is not able to play a valid return. The player who is unable to return the ball will not gain a point, while the opposite player will. Tennis is an Olympic sport and is played at all levels of society and at all ages. The sport can be played by anyone who can hold a racket, including wheelchair users. The modern game of tennis originated in Birmingham, England, in the late 19th century as lawn tennis. It had close connections both to various field (lawn) games such as croquet and bowls as well as to the older racket sport today called real tennis. During most of the 19th century, in fact, the term \"tennis\" referred to real tennis, not lawn tennis: for example, in Disraeli's novel \"Sybil\" (1845), Lord Eugene De Vere announces that he will \"go down to Hampton Court and play tennis.\" The rules of modern tennis have changed little since the 1890s.\n"}, {"role": "user", "content": "Tennis looks so fun, but I don't know anything about it"}, {"role": "assistant", "content": "Tennis IS so fun!  It is probably the most popular racket sport in the world.  I have only ever played singles tennis, but people who play doubles love it too!  Are you thinking of taking lessons?"}, {"role": "user", "content": "Oh no that's way too much commitment, I'm debating on whether or not I should watch it on TV. So how do doubles work? Is there more than one person per team?"}, {"role": "assistant", "content": "Yeah Doubles is two players against two players.  The court becomes a little bit bigger and you are allowed to hit the ball into the second wider set of lines and it is still considered in bounds.  Looks pretty hard,"}, {"role": "user", "content": "Do they use some sort of mechanical court widener to do such a task?"}, {"role": "assistant", "content": "No, the lines are already there, but when you are playing singles tennis you play the two inner lines are the boundary, but when playing Doubles tennis you can hit beyond the inner lines to the set of outer lines.  I guess it gives players more opportunity to score, and avoid getting hurt by each other."}, {"role": "user", "content": "Oh that's so smart. What does love have to do with tennis? I hear that term being thrown around like a tennis ball when people talk about tennis"}, {"role": "assistant", "content": "Love is the term tennis players use for 0, so everyone starts with a score of Love.  I don't know why, it must be a British thing since that is where the game started in the 19th century."}, {"role": "user", "content": "Oh strange, are there different terms for different points? And how does the point system work?"}, {"role": "assistant", "content": "There aren't, 0 is the only one with a funny name, although they don't go in order.  The scoring goes: Love, 15, 30, 40, game.  The only other hitch is you have to win by two.  I think when the inventors were coming up with the game in Birminham England they just didn't want to lose so they kept making up rules, hahaha."}]