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: 'the snowboarder wearing a dark helmet sprays snow into the air'. Find frequency of the letter 'w'

Answer: 3


Question: Sentence: 'a little boy standing near a couch and a table'. Find frequency of the letter 'i'

Answer: 2


Question: Sentence: 'a fire hydrant in a wooded area covered in vines'. Find frequency of the letter 'e'

Answer:
6