TASK DEFINITION: In this task, you need to count the number of times the given letter appears in the given sentence.
PROBLEM: Sentence: 'a young boy holding a piece of paper on top of a table'. Find frequency of the letter 'y'

SOLUTION: 2

PROBLEM: Sentence: 'the snowboarder wearing a dark helmet sprays snow into the air'. Find frequency of the letter 'w'

SOLUTION: 3

PROBLEM: Sentence: 'a woman with short, brown hair is looking into a circular mirror and holding a camera up to her cheek'. Find frequency of the letter 'e'

SOLUTION:
4