text: Ian: Hi, where r u?
  Mike: I'm with Sam.
  Mike: We're trying to repair his BMW.
  Ian: What happend?
  Mike: the alternator broke down
  Ian: oh ... that's not good
  Ian: :(
  Mike: we've bought a new one.
  Mike: Now, we have to install it and it will be Ok!
target: Mike and Sam are trying to repair Sam's BMW. The alternator broke down. They have bought a new one and have to install it. 