instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a herd of giraffes in tall african grass'. Find frequency of the letter 'a'
answer:
6

question:
Sentence: 'a small dog sits in the rear window of a car'. Find frequency of the letter 'm'
answer:
1

question:
Sentence: 'a camera and flash setup to take a pic of the inside of a oven'. Find frequency of the letter 'e'
answer:
6