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 double decker transit bus parks by a blue on the side of the street in front of a brick building in the city'. Find frequency of the letter 't'

Answer: 9


Question: Sentence: 'a photo of a small boat on a shore'. Find frequency of the letter 'f'

Answer: 1


Question: Sentence: 'a woman standing next to a miniature train at a park'. Find frequency of the letter 't'

Answer:
6