This is a paraphrasing task. In this task, you're given a sentence and your task is to generate another sentence which express same meaning as the input using different words.
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Question: this combination of fence parts can not be executed .

Answer: this combination of parts can not be realized .

Question: 'and i would n't be at all surprised that when it does , this broken-down barn 's going to be surrounded by several thousand armed fanatics . '

Answer: '' and i would n't be surprised if , when he goes , this blasted barn is surrounded by a few thousand armed fanatics . ''

Question: um ... forever . and you , why are you sneaking out here in the middle of the night if you 're not scared ?

Answer:
and you , why are you sneaking around in the middle of the night ?