instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'the counter of a doctor's office, including a laptop, cotton swabs, and tongue depressors'. Find frequency of the letter 'g'
answer:
2


question:
Sentence: 'large grassy pasture filled with trees and a single horse'. Find frequency of the letter 'l'
answer:
4


question:
Sentence: 'a person on some skis in the water'. Find frequency of the letter 'a'
answer:

2