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: 'there is a woman pointing at something with her dog'. Find frequency of the letter 'i'

Answer: 5


Question: Sentence: 'a man in a black shirt prepares to catch a frisbee'. Find frequency of the letter 'f'

Answer: 1


Question: Sentence: 'a person layign in a bed wit ha cat on top of them'. Find frequency of the letter 'd'

Answer:
1