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 sitting on a motorcycle near two other men'. Find frequency of the letter 'r'

Answer: 3


Question: Sentence: 'there are two men sitting on a couch playing video games'. Find frequency of the letter 'v'

Answer: 1


Question: Sentence: 'two covered signs, one being a stop sign are standing alone'. Find frequency of the letter 's'

Answer:
5