TASK DEFINITION: In this task, you need to count the number of times the given letter appears in the given sentence.
PROBLEM: Sentence: 'a black cat laying down on a bed'. Find frequency of the letter 'y'

SOLUTION: 1

PROBLEM: Sentence: 'a white and blue plate topped with meat and a salad'. Find frequency of the letter 'u'

SOLUTION: 1

PROBLEM: Sentence: 'wooden boat tied up at a peer on a large body of water'. Find frequency of the letter 'n'

SOLUTION:
2