answer: Sam tells #Person2# about his brother Chris, uncle Steve and sister Laura in the picture and the sports they like.
documents: #Person1#: Sam, who is this in this picture?
  #Person2#: Emm, oh, that's my brother, Chris. He went sailing that one time, but he didn't like it. He is a good climber though. He spends every weekend doing that.
  #Person1#: And is this him, too?
  #Person2#: No, that's my uncle, Steve. He goes skiing 3 times a year. He likes playing basketball, too.
  #Person1#: And your sister Laura is in the school football team, isn't she?
  #Person2#: She does play for their school, but for the volleyball team.