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

Answer: 5


Question: Sentence: 'a toilet of some sort near a sink of some sort'. Find frequency of the letter 'o'

Answer: 7


Question: Sentence: 'a number of tagged sheep in a field are looking at the camera'. Find frequency of the letter 'c'

Answer:
1