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: 'young girls with backpacks are standing near stairs that look to go to the subway'. How many words contain the letter 'r' in the sentence.

Answer: 4


Question: Sentence: 'the young giraffe is standing near the fence'. How many words contain the letter 's' in the sentence.

Answer: 2


Question: Sentence: 'a person wearing a black jacket rides a brown horse'. How many words contain the letter 'y' in the sentence.

Answer:
0