instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a bus is stopped in front of a graphic statue'. Find frequency of the letter 'e'
answer:
2


question:
Sentence: 'a fluffy white car looking in a mirror'. Find frequency of the letter 'k'
answer:
1


question:
Sentence: 'some people and two laptops on a yellow table'. Find frequency of the letter 'p'
answer:

4