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: 'this bus waits at a bus station for passengers to board'. How many words contain the letter 'e' in the sentence.

Answer: 1


Question: Sentence: 'a man herding brown colored animals with a dog'. How many words contain the letter 'z' in the sentence.

Answer: 0


Question: Sentence: 'a woman and child sitting at a table'. How many words contain the letter 'n' in the sentence.

Answer:
3