prompt: Bart makes a mixtape.  The first side has 6 songs.  The second side has 4 songs.  Each song is 4 minutes.  How long is the total tape?
messages.content: Bart makes a mixtape.  The first side has 6 songs.  The second side has 4 songs.  Each song is 4 minutes.  How long is the total tape?
messages.role: user
messages.content: There are 6+4=<<6+4=10>>10 songs on the tape.
  In total, the time is 10*4=<<10*4=40>>40 minutes.
  #### 40
messages.role: assistant