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 man serving himself pizza in a wooden booth'. Find frequency of the letter 'n'

Answer: 4


Question: Sentence: 'the meal is served and ready to be eaten'. Find frequency of the letter 'e'

Answer: 8


Question: Sentence: 'two men holding up neck ties standing next to each other'. Find frequency of the letter 'o'

Answer:
4