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 closeup view of a bathroom sink, that is very modern'. Find frequency of the letter 'e'

Answer: 4

Question: Sentence: 'a bed with a dog laying on it next to two laptop computers'. Find frequency of the letter 'n'

Answer: 3

Question: Sentence: 'a woman on skis coming down a slope'. Find frequency of the letter 'o'

Answer:
5