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 bathroom with marble floor, counter, and bath'. Find frequency of the letter 'f'

SOLUTION: 1

PROBLEM: Sentence: 'a man standing in front of a statue near a metal pole'. Find frequency of the letter 'f'

SOLUTION: 2

PROBLEM: Sentence: 'a man is at a tennis court with a racket'. Find frequency of the letter 'n'

SOLUTION:
3