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 working on a small laptop on a wooden table'. Find frequency of the letter 'l'

Answer: 4


Question: Sentence: 'cooked fish and green broccoli share a single white plate'. Find frequency of the letter 'c'

Answer: 3


Question: Sentence: 'a bird perched on a wooden table on a patio'. Find frequency of the letter 'a'

Answer:
5