TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'a man in a restaurant makes the v sign with both hands'. How many words contain the letter 'n' in the sentence.

SOLUTION: 5

PROBLEM: Sentence: 'bus parked next to a side walk on the road'. How many words contain the letter 'd' in the sentence.

SOLUTION: 3

PROBLEM: Sentence: 'a person spread mustard from a jar on a hotdog'. How many words contain the letter 'r' in the sentence.

SOLUTION:
5