instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a bathroom with a sink, counter top, and mirror is shown'. Find frequency of the letter 'i'
answer:
4


question:
Sentence: 'a picture of two men on a motorcycle in front of a railroad track'. Find frequency of the letter 'n'
answer:
4


question:
Sentence: 'a plate topped with strawberry short cake next to a pink blob'. Find frequency of the letter 'e'
answer:

5