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.
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Question: original sentence: When Tommy dropped his ice cream , Timmy giggled , so father gave him a stern look . paraphrase: When the ice cream was dropped by Tommy , Timmy giggled , so a stern look was given to him by father .

Answer: Voice


Question: original sentence: The sack of potatoes had been placed below the bag of flour , so it had to be moved first . paraphrase: the package of potatoes had been placed below the packet of flour , so it had to be moved first .

Answer: Synonym


Question: original sentence: At the Loebner competition the judges couldn't figure out which respondents were the chatbots because they were so stupid . paraphrase: At the Loebner competition the judges couldn't really figure out which respondents were the chatbots because they were so stupid .

Answer:
Adverb