instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a large motorcycle that has a man dressed in old clothing next to it'. Find frequency of the letter 'a'
answer:
6

question:
Sentence: 'a man flying through the air on top of a skateboard'. Find frequency of the letter 'r'
answer:
3

question:
Sentence: 'the young zebra has it's head under neath the adult zebra'. Find frequency of the letter 'a'
answer:
6