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 bird on a tree is flapping its wings'. Find frequency of the letter 'o'

Answer: 1


Question: Sentence: 'a truck with a camper sits parked in some vegetation'. Find frequency of the letter 's'

Answer: 3


Question: Sentence: 'some cattle grazing in a field behind a fence'. Find frequency of the letter 'e'

Answer:
6