TASK DEFINITION: In this task, you need to count the number of times the given letter appears in the given sentence.
PROBLEM: Sentence: 'two laptop computers sitting on top of a white table'. Find frequency of the letter 'f'

SOLUTION: 1

PROBLEM: Sentence: 'a herd of horses standing next to each other on a field'. Find frequency of the letter 'r'

SOLUTION: 3

PROBLEM: Sentence: 'a plane sitting behind a fence on private property'. Find frequency of the letter 'b'

SOLUTION:
1