instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a few giraffes standing in a field looking around'. Find frequency of the letter 'e'
answer:
3


question:
Sentence: 'a man working on a small laptop on a wooden table'. Find frequency of the letter 'l'
answer:
4


question:
Sentence: 'a yellow sign is hanging on a pole'. Find frequency of the letter 'g'
answer:

3