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: 'man in a sleeping bag on the floor using a laptop computer'. Find frequency of the letter 'i'

Answer: 3


Question: Sentence: 'a tower with some bright lights and clocks on it'. Find frequency of the letter 'h'

Answer: 3


Question: Sentence: 'an empty bedroom with a bed with white sheets'. Find frequency of the letter 'h'

Answer:
4