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

Ex Input:
Sentence: 'a silver truck a street a person and buildings'. How many words contain the letter 'l' in the sentence.

Ex Output:
2


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

Ex Output:
0


Ex Input:
Sentence: 'a catting setting on a bed next to a yellow teddy bear'. How many words contain the letter 'o' in the sentence.

Ex Output:

3