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 man sitting in front of a laptop computer next to a child'. Find frequency of the letter 'e'

Answer: 2


Question: Sentence: 'there is no image here to provide a caption for'. Find frequency of the letter 'o'

Answer: 5


Question: Sentence: 'a smiling man stands beside a large bus with a compass on the side'. Find frequency of the letter 'd'

Answer:
3