TASK DEFINITION: In this task, you need to count the number of times the given letter appears in the given sentence.
PROBLEM: Sentence: 'a row of vintage cars in a grassy field'. Find frequency of the letter 'v'

SOLUTION: 1

PROBLEM: Sentence: 'there are two men sitting on a couch playing video games'. Find frequency of the letter 'v'

SOLUTION: 1

PROBLEM: Sentence: 'a passenger bus is parked on the side of a street'. Find frequency of the letter 'o'

SOLUTION:
2