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

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 woman with a shopping bag talking on a cell phone'. How many words contain the letter 'e' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'oranges and a leaf are in a silver colander'. How many words contain the letter 'b' in the sentence.

Ex Output:

0