prompt: Zhang is twice as old as Li.  Li is 12 years old.  Zhang's brother Jung is 2 years older than Zhang.  How old is Jung?
messages.content: Zhang is twice as old as Li.  Li is 12 years old.  Zhang's brother Jung is 2 years older than Zhang.  How old is Jung?
messages.role: user
messages.content: Zhang is 2 * 12 years old = <<2*12=24>>24 years old.
  Jung is 2 years + 24 years = <<2+24=26>>26 years old.
  #### 26
messages.role: assistant