instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'the snowboarder wearing a dark helmet sprays snow into the air'. Find frequency of the letter 'w'
answer:
3


question:
Sentence: 'a young man with glasses on is taking a big bite'. Find frequency of the letter 's'
answer:
4


question:
Sentence: 'a close up of a doughnut near a drink'. Find frequency of the letter 'e'
answer:

2