TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'dental personnel in dentist office standing in front of a computer screen'. How many words contain the letter 'w' in the sentence.

SOLUTION: 0

PROBLEM: Sentence: 'a tennis player holds a ball as if to throw it in the air to serve it'. How many words contain the letter 'o' in the sentence.

SOLUTION: 4

PROBLEM: Sentence: 'many sheep are standing in the green grass'. How many words contain the letter 'y' in the sentence.

SOLUTION:
1