instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'an empty clean kitchen with island, marble countertops , stove and cabinetry'. Find frequency of the letter 'l'
answer:
3


question:
Sentence: 'the small black and white dog holds onto a frisbee'. Find frequency of the letter 'h'
answer:
3


question:
Sentence: 'men working in a restaurant kitchen at an island'. Find frequency of the letter 'i'
answer:

4