conversations.from: human
conversations.value: Break down this math problem: Perry, Dana, Charlie, and Phil played golf together every week.  At the end of the season, Perry had won five more games than Dana, but Charlie had won 2 games fewer than Dana.  Phil had won 3 games more than Charlie did.  If Phil won a total of 12 games, how many more games did Perry win than did Phil?
conversations.from: assistant
conversations.value: If Phil had won 3 games more than did Charlie, and Phil won 12 games, then Charlie won 12-3=9 games.
  If Charlie had won 2 games fewer than Dana, and Charlie won 9 games, then Dana won 9+2=11 games.
  If Perry had won five more games than did Dana, and Dana won 11 games, then Perry won 11+5=16 games.
  Thus, Perry won 16-12=4 more games than did Phil.