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 sprawls out and sleeps on its back on a lounge chair with an acorn theme'. Find frequency of the letter 'r'

Answer: 3


Question: Sentence: 'two zebras standing around while a third zebra drinks from a pond'. Find frequency of the letter 's'

Answer: 3


Question: Sentence: 'a woman with a racket goes to hit a tennis ball'. Find frequency of the letter 'a'

Answer:
6