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

Sentence: 'a white cat sitting on a couch in a den'. How many words contain the letter 'l' in the sentence.
0

Sentence: 'a cat in a tie sits on the couch'. How many words contain the letter 't' in the sentence.
4

Sentence: 'a woman reading a book while traveling on a train'. How many words contain the letter 'z' in the sentence.

0