TASK DEFINITION: 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.
PROBLEM: original sentence: Susan knew that Ann's son had been in a car accident , so she told her about it . paraphrase: Jack knew that Peter's son had been in a car accident , so he told him about it .

SOLUTION: Gender

PROBLEM: original sentence: The father carried the sleeping boy in his bassinet . paraphrase: The father is carrying the sleeping boy in his bassinet .

SOLUTION: Tense

PROBLEM: original sentence: I put the butterfly wing on the table and it broke . paraphrase: The butterfly wing was put on the table by me and it broke .

SOLUTION:
Voice