instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a plastic tray that has different foods inside of it'. Find frequency of the letter 't'
answer:
6


question:
Sentence: 'a car accident has slowed traffic as a clean up crew works'. Find frequency of the letter 'f'
answer:
2


question:
Sentence: 'two cats sitting on a sink in a bathroom'. Find frequency of the letter 't'
answer:

5