### Instruction: What is Ultimate Frisbee?
### Response: Ultimate Frisbee is a popular sport around the world. It is played both recreationally and at a semi-professional level. It is played with two teams of 7 players who square off against each other on a field that is about the size of an American football field (120x40 yards). Much like American football, the objective is to catch the Frisbee, or disc, in the end zone in order to score points. The run of play, however, is continuous like soccer. Players cannot run while holding the disc, requiring teams to progress down the field by throwing the disc to each other. Each player must release the disc within 10 seconds of acquiring it. Under normal circumstances, the first team to score 15 points wins.