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: 'man in a radio studio wearing a suit in front of a microphone'. Find frequency of the letter 't'

Answer: 3


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

Answer: 5


Question: Sentence: 'a woman at a table with a sandwich and fries'. Find frequency of the letter 'a'

Answer:
8