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 person dressed all in black snowboarding down a slope'. Find frequency of the letter 'e'

Answer: 4


Question: Sentence: 'a woman at a table checking her cell phone'. Find frequency of the letter 'a'

Answer: 5


Question: Sentence: 'a man in a chef's outfit holding a knife while in a kitchen'. Find frequency of the letter 'm'

Answer:
1