TASK DEFINITION: In this task, you need to count the number of times the given letter appears in the given sentence.
PROBLEM: Sentence: 'a large grass pasture land with sheep grazing on grass'. Find frequency of the letter 'a'

SOLUTION: 7

PROBLEM: Sentence: 'a little dog on a table while a dog groomer cuts its fur'. Find frequency of the letter 'r'

SOLUTION: 3

PROBLEM: Sentence: 'pizza on a wooden table being cut into slices'. Find frequency of the letter 'z'

SOLUTION:
2

