premise: I was teaching my son to throw a football.
initial: He couldn't grasp the ball in one hand.
counterfactual: He learned very quickly and was able to throw a nice sprial.
original_ending: He used both hands to throw it to me like a basketball. Then he lobbed it to me underhanded. I hope he gets better at it.
edited_ending: He used one hands to throw it to me like a football player.Then he lobbed it to me underhanded.he gets better at it.<SEP>He used both hands to throw it to me crisply.hen he threw it to me underhanded.I hope he stays great at it.<SEP>He used both hands to throw a football.The he switches to one hand.I'm so glad he's doing good.