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

Ex Input:
Sentence: 'pieces of food sit on the plate the man is holding'. How many words contain the letter 'o' in the sentence.

Ex Output:
4


Ex Input:
Sentence: 'a person is riding a bicycle on the street'. How many words contain the letter 'b' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a person is laying on the couch with their laptop and a notepad'. How many words contain the letter 'y' in the sentence.

Ex Output:

1