instruction:
You will be given two sentences. One of them is created by paraphrasing the original one, with changes on an aspect, or using synonyms. Your task is to decide what is the difference between two sentences. Types of change are explained below:
 Tense: The verbs in the sentence are changed in tense.
Number: Plural nouns, verbs and pronouns are changed into single ones or the other way around.
Voice: If the verbs are in active voice, they're changed to passive or the other way around.
Adverb: The paraphrase has one adverb or more than the original sentence.
Gender: The paraphrase differs from the original sentence in the gender of the names and pronouns.
Synonym: Some words or phrases of the original sentence are replaced with synonym words or phrases. Changes in the names of people are also considered a synonym change. Classify your answers into Tense, Number, Voice, Adverb, Gender, and Synonym.
question:
original sentence: Grace was happy to trade me her sweater for my jacket . She thinks it looks great on her . paraphrase: Grace was happy to trade me her sweaters for my jackets . She thinks they look great on her .
answer:
Number


question:
original sentence: The large ball crashed right through the table because it was made of steel . paraphrase: The table was crashed through by the large ball because it was made of steel .
answer:
Voice


question:
original sentence: Bob collapsed on the sidewalk . Soon he saw Carl coming to help . He was very concerned . paraphrase: Lucy collapsed on the sidewalk . Soon she saw Mary coming to help . She was very concerned .
answer:

Gender