instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a stop sign near a rail road crossing sign'. Find frequency of the letter 'g'
answer:
3

question:
Sentence: 'one man grabbing another at a table while laughing'. Find frequency of the letter 'n'
answer:
5

question:
Sentence: 'a man on a skateboard on the sidewalk'. Find frequency of the letter 'e'
answer:
3