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: 'bananas are being dried in a tropical setting'. Find frequency of the letter 'i'

Answer: 5


Question: Sentence: 'several zebras  and a giraffe in an enclosure'. Find frequency of the letter 's'

Answer: 3


Question: Sentence: 'several people standing in an area with picnic tables looking at a board'. Find frequency of the letter 'o'

Answer:
4