instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'eight donuts are cooked together in oil in a metal tray'. Find frequency of the letter 'h'
answer:
2


question:
Sentence: 'a couple of people that are on a baseball field'. Find frequency of the letter 'c'
answer:
1


question:
Sentence: 'there is a red double decker bus on the street'. Find frequency of the letter 'h'
answer:

2