In this task, you need to count the number of times the given letter appears in the given sentence.
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Question: Sentence: 'bathroom scene with a black cat going behind the door'. Find frequency of the letter 'e'

Answer: 4

Question: Sentence: 'a boy catching a frisbee while standing ins bunch of leaves'. Find frequency of the letter 'a'

Answer: 5

Question: Sentence: 'people with masks are making food on a table'. Find frequency of the letter 'e'

Answer:
4