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 elephants facing each other touching trunks in an enclosure'. Find frequency of the letter 'f'

Answer: 1


Question: Sentence: 'people playing wii bowling in a modern library'. Find frequency of the letter 'o'

Answer: 3


Question: Sentence: 'a snow boarder flies through the air'. Find frequency of the letter 'd'

Answer:
1