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

Sentence: 'a name and clock lit up at night'. How many words contain the letter 'y' in the sentence.
0

Sentence: 'a woman in a wheelchair is about to play tennis'. How many words contain the letter 'r' in the sentence.
1

Sentence: 'a bear that is standing in a tree'. How many words contain the letter 'u' in the sentence.

0