TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'a horse and a donkey stand in a fenced field'. How many words contain the letter 'd' in the sentence.

SOLUTION: 5

PROBLEM: Sentence: 'a giraffe grazing in pen next to a tree trunk'. How many words contain the letter 'v' in the sentence.

SOLUTION: 0

PROBLEM: Sentence: 'black and white photograph of men with tennis rackets'. How many words contain the letter 'a' in the sentence.

SOLUTION:
4