TASK DEFINITION: In this task, you need to count the number of times the given letter appears in the given sentence.
PROBLEM: Sentence: 'a snow filled mountain with a guy with ski's'. Find frequency of the letter 'f'

SOLUTION: 1

PROBLEM: Sentence: 'there is a sandwich with a lot of meat cut in half'. Find frequency of the letter 'a'

SOLUTION: 5

PROBLEM: Sentence: 'a person leaning over an unmade bed in a cluttered room'. Find frequency of the letter 't'

SOLUTION:
2