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 woman walking on a shore next to a river'. Find frequency of the letter 'v'

Answer: 1


Question: Sentence: 'a white bowl filled with peeled orange slices'. Find frequency of the letter 's'

Answer: 2


Question: Sentence: 'the refrigerator is on display in the window of the store'. Find frequency of the letter 'r'

Answer:
5