TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'an elephant standing on a green grass area'. How many words contain the letter 'm' in the sentence.

SOLUTION: 0

PROBLEM: Sentence: 'some people at a table with food and drinks'. How many words contain the letter 'n' in the sentence.

SOLUTION: 2

PROBLEM: Sentence: 'a man holding a doughnut over a bowl'. How many words contain the letter 'd' in the sentence.

SOLUTION:
2