TASK DEFINITION: In this task, you need to count the number of times the given letter appears in the given sentence.
PROBLEM: Sentence: 'a large cooked pizza on a dining table'. Find frequency of the letter 'n'

SOLUTION: 3

PROBLEM: Sentence: 'the child is waving a small flag as she stands near two women'. Find frequency of the letter 'g'

SOLUTION: 2

PROBLEM: Sentence: 'a group of people standing on a baseball field around a podium'. Find frequency of the letter 'n'

SOLUTION:
4