instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'the sun goes down over a bike tied to a bench at the beach'. Find frequency of the letter 't'
answer:
5


question:
Sentence: 'a glass bowl of raw broccoli, a ceramic bowl of raw green chili peppers, and steel bowl of raw daikon'. Find frequency of the letter 'a'
answer:
9


question:
Sentence: 'a traffic light at the corner of a business building with traffic going by'. Find frequency of the letter 'a'
answer:

5