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.

original sentence: Madonna fired her trainer because she couldn't stand her boyfriend . paraphrase: The trainer was fired by madonna because she couldn't stand her boyfriend .
Voice

original sentence: Jim comforted Kevin because he was so upset . paraphrase: Jim and Frank comforted Kevin and John because they were so upset .
Number

original sentence: Dr . Adams informed Kate that she had retired and presented several options for future treatment . paraphrase: Kate was informed by Dr . Adams that she had retired and was presented several options for future treatment .

Voice