TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'a picture of a plane in the air'. How many words contain the letter 'l' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'a skier skiing on the mountain with trees behind him'. How many words contain the letter 'z' in the sentence.

SOLUTION: 0

PROBLEM: Sentence: 'a white car near a stop sign and a big building'. How many words contain the letter 'h' in the sentence.

SOLUTION:
1