In this task, you need to count the number of words in a sentence that contain the given letter
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Question: Sentence: 'several people and a dog riding on a small boat'. How many words contain the letter 'l' in the sentence.

Answer: 3


Question: Sentence: 'a toilet and long handled plunger in a cleaned bathroom'. How many words contain the letter 'i' in the sentence.

Answer: 2


Question: Sentence: 'a herd of six zebra crossing a road'. How many words contain the letter 'a' in the sentence.

Answer:
4