TASK DEFINITION: In this task, you need to count the number of times the given letter appears in the given sentence.
PROBLEM: Sentence: 'a white and blue plate topped with meat and a salad'. Find frequency of the letter 'u'

SOLUTION: 1

PROBLEM: Sentence: 'a log in the water with three birds perched on it'. Find frequency of the letter 'r'

SOLUTION: 4

PROBLEM: Sentence: 'a picture of a big clock tower in a small town'. Find frequency of the letter 'i'

SOLUTION:
3