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: 'man in a radio studio wearing a suit in front of a microphone'. Find frequency of the letter 't'

Answer: 3

Question: Sentence: 'some people sitting on surfboards in the water'. Find frequency of the letter 't'

Answer: 4

Question: Sentence: 'feet that are strapped onto a wake board'. Find frequency of the letter 'o'

Answer:
3