TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'man in blue shirt hitting a tennis ball back'. How many words contain the letter 'q' in the sentence.

SOLUTION: 0

PROBLEM: Sentence: 'a group of people on skis on a snowy slope'. How many words contain the letter 'w' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'an orchard of several  orange trees in a forest'. How many words contain the letter 'l' in the sentence.

SOLUTION:
1