TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'a man and a woman stand under an umbrella'. How many words contain the letter 's' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'a woman swinging a tennis racquet in the air'. How many words contain the letter 'z' in the sentence.

SOLUTION: 0

PROBLEM: Sentence: 'a baseball player getting ready to slide into second'. How many words contain the letter 'd' in the sentence.

SOLUTION:
3