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: 'children with scissors and construction paper in a school classroom'. Find frequency of the letter 'c'

Answer: 6


Question: Sentence: 'a giraffe shares a habitat with a zebra, an ostrich, and an okapi'. Find frequency of the letter 'e'

Answer: 3


Question: Sentence: 'a small boy on a leash skiing with an adult'. Find frequency of the letter 'l'

Answer:
4