text: Alice: what was this shortcut for fast closing programs you told me about?
  Mike: it was ALT + F4
  Alice: ahh thanks again! and for copying?
  Mike: <file_other>
  Alice: thanks!!!
  Mike: just use this cheat sheet that I sent - it's really helpful :)
target: The shortcut for program-closing is ALT + F4. Mike has sent Alice a cheat sheet with other helpful shortcuts.