instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a large bathroom with marble floor, counter, and bath'. Find frequency of the letter 'f'
answer:
1


question:
Sentence: 'a crowd of people standing in front of a green train'. Find frequency of the letter 'g'
answer:
2


question:
Sentence: 'a jet flying high above a statue on a clock tower'. Find frequency of the letter 'o'
answer:

4