TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'a large field is next to a river'. How many words contain the letter 'j' in the sentence.

SOLUTION: 0

PROBLEM: Sentence: 'a person is riding a bicycle on the street'. How many words contain the letter 'b' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'police tow truck parked on a city street in front of stores'. How many words contain the letter 'r' in the sentence.

SOLUTION:
5