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: 'an untidy room with clothes bottles next to an oven'. How many words contain the letter 'a' in the sentence.

Answer: 2


Question: Sentence: 'there are some warning signs on a public toilet'. How many words contain the letter 'a' in the sentence.

Answer: 3


Question: Sentence: 'a very long yellow train coming around a corner'. How many words contain the letter 'y' in the sentence.

Answer:
2