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: 'a cat sprawls out and sleeps on its back on a lounge chair with an acorn theme'. Find frequency of the letter 'r'

Answer: 3

Question: Sentence: 'a few men walking through a market place'. Find frequency of the letter 'f'

Answer: 1

Question: Sentence: 'two people standing at a gate with a group of cars'. Find frequency of the letter 'o'

Answer:
4