text: Marty: hello
  Biff: hey
  Marty: how are you?
  Biff: fine thx
  Biff: and u?
  Marty: not so good
  Biff: why?
  Marty: oh its just the weather
  Biff: and it makes you feel you so bad?
  Marty: yeah
  Marty: my head aches always when it rains
  Biff: really?
  Biff: like old ladies xd
  Marty: yeah i know
  Marty: but my doc are hopeless
  Biff: so you will have this forever
  Marty: it seems so
  Biff: wow im so sorry to hear that
  Marty: thanks buddy
target: Marty has a headache everytime it rains.