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: brim chuckled as they crawled past row after row of historic buildings .

Answer: as they rode past rows of historic buildings , brim laughed silently for himself .

Question: and mostly those came out of the labs he ' d worked in , so he named them what they were , in all their chemical parts .

Answer: and they mostly came from the lab where he worked , so he called them their real names , all of the chemical components .

Question: i want to know why we need him . are you being investigated ?

Answer:
i want to know why we need him .