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: 'adults with helmets sitting on tricycles made for children'. How many words contain the letter 'r' in the sentence.

Answer: 3


Question: Sentence: 'an orange cat is lounging on a gray couch'. How many words contain the letter 'c' in the sentence.

Answer: 2


Question: Sentence: 'a young man in a white shirt skateboarding on an empty street'. How many words contain the letter 'u' in the sentence.

Answer:
1