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 jet flying through the clear blue sky'. Find frequency of the letter 'g'

Answer: 2


Question: Sentence: 'a person on a surfboard in the surf of a wave'. Find frequency of the letter 's'

Answer: 3


Question: Sentence: 'a red vw van parked on top of a sandy beach'. Find frequency of the letter 'p'

Answer:
2