instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'apples, pears, and oranges are piled up for sale'. Find frequency of the letter 'a'
answer:
6


question:
Sentence: 'two indian women in colorful garb standing barefoot with two indian men'. Find frequency of the letter 'd'
answer:
3


question:
Sentence: 'a cat that is laying on a bed'. Find frequency of the letter 'a'
answer:

5