text: Frank: Remember you have to be home by 8pm.
  Jim: Yes dad!
  Frank: If you're late you're grounded for a week.
  Jim: I know. I won't be late.
  Frank: Just want to make sure that we're absolutely clear on that.
  Jim: If the bus is late it is not my fault though.
  Frank: No excuses! Home by 7pm firm!
target: Jim has to be home by 8pm. Otherwise, he will be grounded for a week.