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 bunch of people are standing out in a field a red one has their arms out as a white ball is in the air'. Find frequency of the letter 'e'

Answer: 9


Question: Sentence: 'two men with colorful ties are posing for a picture'. Find frequency of the letter 'r'

Answer: 4


Question: Sentence: 'a woman in grey hoodie and apron preparing donuts'. Find frequency of the letter 'm'

Answer:
1