sentence: After school , he did n't go home directly because he wanted to check if what he had seen in the morning was real or not , but he did n't find anything .
modified: after school he did n't go to his home directly to check if what he saw at the morning was real or not , but he did n't find anything .
transformation: ORTH, PUNCT, PREP, DET, OTHER, VERB:TENSE, PREP