instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'two people holding their skies in a snowy resort'. Find frequency of the letter 'n'
answer:
3


question:
Sentence: 'city two way street with cars lined up on both sides'. Find frequency of the letter 'h'
answer:
2


question:
Sentence: 'a small lamb with a blue rope tied around its head'. Find frequency of the letter 'l'
answer:

4