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: Jim signaled the barman and gestured toward his bathroom key . paraphrase: Jim and Bill signaled the barmen and gestured toward their bathroom keys .
[A]: Number


[Q]: original sentence: At the Loebner competition the judges couldn't figure out which respondents were the chatbots because they were so advanced . paraphrase: At the Loebner competition the judges couldn't really figure out which respondents were the chatbots because they were so advanced .
[A]: Adverb


[Q]: original sentence: Tom threw his schoolbag down to Ray after he reached the bottom of the stairs . paraphrase: Tom and Andrew threw their schoolbags down to Ray and Bob after they reached the bottom of the stairs .
[A]:
Number