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: 'a girl is ready to serve the ball on a clay court'. How many words contain the letter 'd' in the sentence.

Answer: 1

Question: Sentence: 'cows crowd up to a barbed wire fence under a tree'. How many words contain the letter 'n' in the sentence.

Answer: 2

Question: Sentence: 'a woman in a blue shirt is holding a tennis racquet'. How many words contain the letter 'l' in the sentence.

Answer:
2