premise: My son has always been very bright.
initial: However, he is not very good at doing his homework.
counterfactual: So bright he often gets the top grades at school, and makes his school friends jealous.
original_ending: Last trimester, he almost failed three of his classes. He had to work very hard to get his grades back up by term's end. But after working hard, he managed to pass.
edited_ending: Last trimester, he aced three of his classes.He did not have to work very hard to get his high grades.Even without working hard, he managed to the rest of classes as well.<SEP>Last trimester, he aced all of his classes.He did not have to work very hard to keep his grades up.His friends had to work hard, but managed to pass.<SEP>Last trimester, he passed all of his classes.He had to work very hard to keep his grades up.But after working hard, he managed to keep high marks.