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 formal living room with yellow couches and table'. Find frequency of the letter 'v'

SOLUTION: 1

PROBLEM: Sentence: 'a double decker bus with a lot of people on board'. Find frequency of the letter 'l'

SOLUTION: 3

PROBLEM: Sentence: 'a heron is standing next to a body of water'. Find frequency of the letter 'n'

SOLUTION:
4