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 young elephant is touching a bigger elephant with its trunk'. Find frequency of the letter 'i'

Answer: 5


Question: Sentence: 'a group of cars and house on truck passing in a street'. Find frequency of the letter 'i'

Answer: 2


Question: Sentence: 'a large bunch of green bananas hangs from a tree'. Find frequency of the letter 'b'

Answer:
2