TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'street signs are affixed to a utility pole'. How many words contain the letter 'u' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'a couple sitting on seats on a train'. How many words contain the letter 'z' in the sentence.

SOLUTION: 0

PROBLEM: Sentence: 'people standing on the beach playing with kites'. How many words contain the letter 'e' in the sentence.

SOLUTION:
4