premise: When I was seven years old, I went swimming with some friends.
initial: I did not know how to swim in deep water.
counterfactual: The local pool had a separate children's section, where the water was only 2 feet deep, and we played in that.
original_ending: By accident, I slipped into the deep part of the pool. I thought I was going to drown! A lifeguard jumped in and pulled me out of the deep end.
edited_ending: By accident, I slipped on the ground of the pool and hit my head on the floor.I thought I was going to die!A lifeguard jumped in and pulled me out.<SEP>By accident, I slipped while in the children's pool.I thought I was going to drown!A lifeguard jumped in and helped me up.<SEP>By accident, I wandered into the deep part of the pool.I thought I was going to drown!A lifeguard jumped in and pulled me out of the deep end.