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

Ex Input:
Sentence: 'there are trains that are on the train track'. How many words contain the letter 'z' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a man sits on a bench with a dog in lap reading'. How many words contain the letter 'x' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a crafting desk set with photos scissors tape and pens'. How many words contain the letter 'j' in the sentence.

Ex Output:

0