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: 'a person standing in the kitchen with an object in hand'. How many words contain the letter 't' in the sentence.

Answer: 5


Question: Sentence: 'a man in a suit with his finger in his ear'. How many words contain the letter 'm' in the sentence.

Answer:
1