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

Ex Input:
Sentence: 'a keyboard on a table with a toothbrush a book some sunglasses and coffee'. How many words contain the letter 'e' in the sentence.

Ex Output:
5


Ex Input:
Sentence: 'the black bears are together on the rocks eating outside'. How many words contain the letter 'y' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'two computer screens and a keyboard are on a desk'. How many words contain the letter 'g' in the sentence.

Ex Output:

0