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: 'there is a baseball game on and a few people are watching'. Find frequency of the letter 'i'

Answer: 2


Question: Sentence: 'a woman is looking at sheep off in a field'. Find frequency of the letter 'm'

Answer: 1


Question: Sentence: 'a man who is eating some food out of a bowl'. Find frequency of the letter 's'

Answer:
2