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 cat sleeping near lots of pairs of shoes'. Find frequency of the letter 'r'

Answer: 2


Question: Sentence: 'an empty clean kitchen with island, marble countertops , stove and cabinetry'. Find frequency of the letter 'l'

Answer: 3


Question: Sentence: 'four planes fly over a metropolitan area with tall buildings'. Find frequency of the letter 'g'

Answer:
1