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: There is a pillar between me and the stage , and I can't see around it . paraphrase: There was a pillar between me and the stage , and I couldn't see around it .
Example Output: Tense

Example Input: original sentence: Dr . Adams informed Kate that she had retired and presented several options for future treatment . paraphrase: Dr . Adams and Dr . Jones informed Kate and Laura that they had retired and presented several options for future treatment .
Example Output: Number

Example Input: original sentence: Tom threw his schoolbag down to Ray after he reached the bottom of the stairs . paraphrase: The schoolbag was thrown down to Ray by Tom after he reached the bottom of the stairs .
Example Output:
Voice