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

Sentence: 'a boy in a car on a laptop'. How many words contain the letter 'j' in the sentence.
0

Sentence: 'young girls with backpacks are standing near stairs that look to go to the subway'. How many words contain the letter 'r' in the sentence.
4

Sentence: 'a park with flowers on a sunny day'. How many words contain the letter 'o' in the sentence.

2