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: 'two zebra stand near the wooden posts on a building'. Find frequency of the letter 't'

Answer: 4


Question: Sentence: 'a bunch of green bananas is hanging on a tree'. Find frequency of the letter 'n'

Answer: 7


Question: Sentence: 'a all metal clock sitting next to a leaf free tree'. Find frequency of the letter 'e'

Answer:
7