instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a person dressed all in black snowboarding down a slope'. Find frequency of the letter 'e'
answer:
4


question:
Sentence: 'a gray colored pigeon that is perched on a railing outside of a building, with other buildings in the background'. Find frequency of the letter 'e'
answer:
7


question:
Sentence: 'a guy sitting on top of a red motorcycle'. Find frequency of the letter 'o'
answer:

5