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 little boy standing near a couch and a table'. Find frequency of the letter 'i'

Answer: 2

Question: Sentence: 'a man skating down a stair rail in front of a bunch of people'. Find frequency of the letter 'o'

Answer: 5

Question: Sentence: 'a man wearing shades is standing next to a stop sign'. Find frequency of the letter 's'

Answer:
6