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: 'two zebras feed on a plant through some wire mesh'. Find frequency of the letter 'o'

SOLUTION: 4

PROBLEM: Sentence: 'a green and white train at a station and train tracks'. Find frequency of the letter 'a'

SOLUTION:
9