TASK DEFINITION: In this task, you need to count the number of times the given letter appears in the given sentence.
PROBLEM: Sentence: 'statues of 2 zebras and 1 giraffe in a doorway'. Find frequency of the letter 'a'

SOLUTION: 6

PROBLEM: Sentence: 'a woman fully dressed as a geisha'. Find frequency of the letter 'm'

SOLUTION: 1

PROBLEM: Sentence: 'a man sitting on a bench looking at his cell phone'. Find frequency of the letter 'b'

SOLUTION:
1