instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a black bear sitting in the grass taking a rest'. Find frequency of the letter 'a'
answer:
6


question:
Sentence: 'a large bathroom with marble floor, counter, and bath'. Find frequency of the letter 'f'
answer:
1


question:
Sentence: 'children with scissors and construction paper in a school classroom'. Find frequency of the letter 'c'
answer:

6