instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a man in a black shirt prepares to catch a frisbee'. Find frequency of the letter 'f'
answer:
1


question:
Sentence: 'two bigger elephants standing with a small elephant'. Find frequency of the letter 't'
answer:
5


question:
Sentence: 'a man laying down with his mouth open and his head next to a remote control for a television'. Find frequency of the letter 'e'
answer:

7