TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'a black and white photo of a plane sitting on a runway'. How many words contain the letter 'b' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'there are trains that are on the train track'. How many words contain the letter 'z' in the sentence.

SOLUTION: 0

PROBLEM: Sentence: 'a bus leaving a bus stop in an empty street'. How many words contain the letter 'o' in the sentence.

SOLUTION:
1