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 person is water skiing and there are birds flying around above them'. Find frequency of the letter 'n'

Answer: 5


Question: Sentence: 'a picture of a toilet and toilet paper in a bathroom'. Find frequency of the letter 'o'

Answer: 5


Question: Sentence: 'people on a beach by the ocean flying kites'. Find frequency of the letter 'o'

Answer:
3