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: 'cows crowd up to a barbed wire fence under a tree'. How many words contain the letter 'n' in the sentence.

SOLUTION: 2

PROBLEM: Sentence: 'a girl with red hair holding a baseball glove at a game'. How many words contain the letter 'l' in the sentence.

SOLUTION:
4