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 display case filled with lots of different clocks'. Find frequency of the letter 'w'

Answer: 1


Question: Sentence: 'a lady is standing near a luggage stand at the air port'. Find frequency of the letter 'a'

Answer: 9


Question: Sentence: 'man in t-shirt sitting on one end of a wooden bench, in an urban area'. Find frequency of the letter 'i'

Answer:
5