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: 'person wearing all white leaned up against a wall with a yellow sign'. Find frequency of the letter 'a'

Answer: 8


Question: Sentence: 'a grey hummingbird by fence and tree branches'. Find frequency of the letter 'y'

Answer: 2


Question: Sentence: 'a modern bathroom with a vanity sink and large bath tub'. Find frequency of the letter 'v'

Answer:
1