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: 'a young girl is brushing her teeth in this dated photo'. Find frequency of the letter 't'

Answer: 5


Question: Sentence: 'a man holding a laptop on his leg while doing a task'. Find frequency of the letter 's'

Answer:
2