TASK DEFINITION: In this task, you need to count the number of times the given letter appears in the given sentence.
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 man with a large grey and black beard and glasses and a tie'. Find frequency of the letter 'e'

SOLUTION: 5

PROBLEM: Sentence: 'the meal consists of beef, brocolli, and other vegetables'. Find frequency of the letter 'o'

SOLUTION:
5