sentence: At that point , his work became very hard and stressful because , at that time , Ferrari was n't a very good car . In fact , that car was only able to go fast on straight circuits .
modified: At that point his work become very hard and stressful because at that time Ferrari was n't a very good car in fact that car was only able to go fast in a straight circuits .
transformation: PUNCT, VERB:FORM, PUNCT, PUNCT, PUNCT, PUNCT, PREP, DET