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 woman dressed in green and black operating a remote control'. Find frequency of the letter 'r'

SOLUTION: 5

PROBLEM: Sentence: 'a man in a suit makes the first slice into a cake'. Find frequency of the letter 't'

SOLUTION: 4

PROBLEM: Sentence: 'a truck of some sort moving along a road'. Find frequency of the letter 'k'

SOLUTION:
1