TASK DEFINITION: In this task, you need to count the number of times the given letter appears in the given sentence.
PROBLEM: Sentence: 'three men are in a kitchen cooking and cutting through a dish'. Find frequency of the letter 'a'

SOLUTION: 4

PROBLEM: Sentence: 'a young elephant is touching a bigger elephant with its trunk'. Find frequency of the letter 'i'

SOLUTION: 5

PROBLEM: Sentence: 'skateboarder in air above steps and a hand rail'. Find frequency of the letter 'p'

SOLUTION:
1