TASK DEFINITION: In this task, you need to count the number of times the given letter appears in the given sentence.
PROBLEM: Sentence: 'young boy flying kite in large field at outdoor event'. Find frequency of the letter 'y'

SOLUTION: 3

PROBLEM: Sentence: 'a man is taking a picture of a man and woman'. Find frequency of the letter 'a'

SOLUTION: 8

PROBLEM: Sentence: 'a bowl is set under a tap in a well lit bathroom'. Find frequency of the letter 't'

SOLUTION:
4