premise: My son participated in a cub scout toy car derby.
initial: Father and son teams designed small matchbox cars.
counterfactual: I bought him a car instead of having to design it.
original_ending: Some teams designed fancy cars. We designed a simple car, which actually won the derby. My son was happy that we won.
edited_ending: Some other teams designed fancy cars.Our bought car was too simple to win the derby.My son was sad that we lost.<SEP>Some of the other teams designed fancy cars.We bought a simple car which actually won the derby.My son was happy that we won.<SEP>Some teams designed fancy cars.Our purchased one was still better and actually won the derby.My son was happy that we won.