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: I couldn't find a spoon , so I tried using a pen to stir my coffee . But that turned out to be a bad idea , because it got full of coffee . paraphrase: A spoon couldn't be found , so I tried using a pen to stir my coffee . But that turned out to be a bad idea , because it got full of coffee .

A: Voice
****
Q: original sentence: Mark told Pete many lies about himself , which Pete included in his book . He should have been more truthful . paraphrase: Julia told Angela many lies about herself , which Angela included in her book . She should have been more truthful .

A: Gender
****
Q: original sentence: Paul tried to call George on the phone , but he wasn't successful . paraphrase: Paul and Bill tried to call George and John on the phone , but they weren't successful .

A:
Number
****