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 man holding a brown paper bag kite'. Find frequency of the letter 'b'

Answer: 2


Question: Sentence: 'there is a person standing on a blue towel'. Find frequency of the letter 'n'

Answer: 4


Question: Sentence: 'a black and white picture of people lined up at a food truck'. Find frequency of the letter 'p'

Answer:
4