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 sleek and pointy fighter jet flying in the sky'. How many words contain the letter 'f' in the sentence.

SOLUTION: 2

PROBLEM: Sentence: 'a couple of white sinks and a mirror in a room'. How many words contain the letter 'k' in the sentence.

SOLUTION:
1