text: Tim: Are you going to the dinner?
  Jeff: Birgit's dinner?
  Mira: I'm not invited
  Tim: what?
  Tim: that has to be a mistake
  Mira: I'm not sure
  Mira: we talked this morning and she didn't say anything
  Tim: she told me on Monday that she invited you
  Mira: no idea
target: Mira isn't going to the Birgit's dinner because she didn't get an invitation. Birgit told Tim on Monday that she had invited Mira. 