answer: Dave comes to #Person1#'s party. #Person1# introduces #Person1#'s sister and ballet teacher to #Person2# and wants him to meet them.
documents: #Person1#: Hi, Dave. Nice of you to take the trouble to get here. Come in.
  #Person2#: Wow. Looks as if the party is going strong.
  #Person1#: Yeah. And they're eating all my food. Oh, I'd like you to meet my sister, Carol. She's visiting for the weekend.
  #Person2#: Oh. Which one is she?
  #Person1#: She's sitting on the sofa over there.
  #Person2#: You mean the woman with long black hair?
  #Person1#: That's right. Let me introduce her to you. You're very similar people, both so friendly and adventurous.
  #Person2#: And who's the man sitting next to her? Uh, the man wearing the jacket.
  #Person1#: Oh, that's Bob, my ballet teacher.
  #Person2#: Ballet teacher! I never knew you were into ballet.
  #Person1#: I started about two months ago. Come on. I'd like you to meet them.
  #Person2#: I'm coming.