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.

[Q]: original sentence: John hired Bill to take care of him . paraphrase: John thankfully hired Bill to take care of him .
[A]: Adverb


[Q]: original sentence: I couldn't put the pot on the shelf because it was too high . paraphrase: I couldn't put the pots on the shelves because they were too high .
[A]: Number


[Q]: original sentence: Mark told Pete many lies about himself , which Pete included in his book . He should have been more sceptical . paraphrase: Mark and David told Pete and Jack many lies about themselves , which Pete and Jack included in their book . They should have been more sceptical .
[A]:
Number