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: 'hotel towels with sunglasses perched and hotel business cards and catalog'. Find frequency of the letter 'o'

Answer: 4


Question: Sentence: 'two bears swim in a blue pool of water'. Find frequency of the letter 'o'

Answer: 4


Question: Sentence: 'a man with three ties on holding a camera'. Find frequency of the letter 'd'

Answer:
1