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 in a sweatshirt is taking his own picture'. Find frequency of the letter 'u'

Answer: 1

Question: Sentence: 'a laptop computer with pictures of giraffes on the homescreen'. Find frequency of the letter 'o'

Answer: 5

Question: Sentence: 'a young man jumping in the air on his skateboard at a park in the city'. Find frequency of the letter 'u'

Answer:
2