premise: Tim stepped out to check the mailbox.
initial: He didn't close the door all the way.
counterfactual: The door was firmly closed behind him.
original_ending: His dog shot out at a full run. Tim tried to catch him but it was too late. Tim had to get the car to find his dog.
edited_ending: Otherwise his dog would have shot out at a full run.Tim would have had to try to catch him before it was too late.Tim would have had to get the car to find his dog.<SEP>His dog shot out through the doggy door at a full run.Tim tried to catch him but it was too late.Tim had to get the car to find his dog.<SEP>His dog cannot go out for a run.Tim planned to lock him before it was too late.Tim does not want to lose his dog.