In this task, you need to count the number of words in a sentence that contain the given letter

Sentence: 'a man herding brown colored animals with a dog'. How many words contain the letter 'z' in the sentence.
0

Sentence: 'a car stopped at a red light at an intersection'. How many words contain the letter 'l' in the sentence.
1

Sentence: 'a bus driving under a bridge down a road'. How many words contain the letter 'b' in the sentence.

2