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 in a helmet leans on his motorcycle'. How many words contain the letter 'n' in the sentence.

SOLUTION: 4

PROBLEM: Sentence: 'several men standing up in a large room holding wii controllers'. How many words contain the letter 'h' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'a pitcher caught just after throwing a baseball'. How many words contain the letter 'c' in the sentence.

SOLUTION:
2