Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
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Question: What canal opened in Egypt?

Answer: egypt


Question: Who wrote the poem Elegy Written in a Country Churchyard?

Answer: elegy written in a country churchyard


Question: Which 32 mile canal runs from the Bridgewater canal in Manchester to join the Aire and Calder Navigation Canal at Sowerby Bridge in Yorkshire, passing through the town that gives the canal its name?

Answer:
bridgewater canal