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 large cooked pizza on a dining table'. Find frequency of the letter 'n'

Answer: 3


Question: Sentence: 'baseball player reaching back as he's about to throw the ball'. Find frequency of the letter 'e'

Answer: 5


Question: Sentence: 'a traffic light pole sitting in an intersection late at night'. Find frequency of the letter 'n'

Answer:
6