answer: #Person1# invites Mary to the Children's Center but Mary has to visit Tom with her mom.
documents: #Person1#: Mary, would you go to the Children's Center with us this Sunday afternoon?
  #Person2#: Well, I'd like to, but Mum asked me to see her nephew Tom at No. 1 People's Hospital.
  #Person1#: It doesn't matter. What's wrong with Tom? Does he have a bad cold or have a headache?
  #Person2#: I was told that he hurt himself in the left left during the football game.
  #Person1#: I'm sorry to hear that. How long has he been in the hospital?
  #Person2#: Three days. He was sent to the hospital as soon as his leg was hurt.