TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
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: 'an orange cat is lounging on a gray couch'. How many words contain the letter 'c' in the sentence.

SOLUTION: 2

PROBLEM: Sentence: 'a pizza sitting on top of a pizza pan'. How many words contain the letter 't' in the sentence.

SOLUTION:
2