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 group of people seated in chairs together and facing the same direction, with one man holding a soccer ball in his hands'. Find frequency of the letter 'm'

Answer: 2

Question: Sentence: 'a couple of boys in a field playing baseball'. Find frequency of the letter 'i'

Answer: 3

Question: Sentence: 'a person that is in some kind of boat'. Find frequency of the letter 'o'

Answer:
4