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: 'there is a stop sign that has a reflection in a puddle'. Find frequency of the letter 'e'
answer:
5


question:
Sentence: 'a person riding a skate board on a skate park'. Find frequency of the letter 'a'
answer:

7