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 is sitting in a cubicle with a computer'. How many words contain the letter 'a' in the sentence.

SOLUTION: 4

PROBLEM: Sentence: 'a large brown dog with a white deflated ball in its mouth'. How many words contain the letter 'm' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'four surfers are getting ready to catch a wave at the beach'. How many words contain the letter 'n' in the sentence.

SOLUTION:
1