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.

Example Input: 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 referees couldn't figure out which respondents were the coversational agents because they were so advanced .
Example Output: Synonym

Example Input: original sentence: James asked Robert for a favor but he was refused . paraphrase: Robert was asked by James for a favor but he was refused .
Example Output: Voice

Example Input: original sentence: The dog chased the cat , which ran up a tree . It waited at the top . paraphrase: the canine chased the feline , which ran up a tree . it waited at the top .
Example Output:
Synonym