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 group of three dogs laying on a kitchen floor'. Find frequency of the letter 'r'

Answer: 3


Question: Sentence: 'salad and vegetables with me on top of plate'. Find frequency of the letter 'o'

Answer: 3


Question: Sentence: 'a boy poses for a picture underneath a large clock'. Find frequency of the letter 'c'

Answer:
3