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

Ex Input:
Sentence: 'the corner of a bathroom with washrags and cleaning supplies'. How many words contain the letter 'q' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a laptop computer that is sitting on a desk'. How many words contain the letter 't' in the sentence.

Ex Output:
4


Ex Input:
Sentence: 'a train pulling into a train station next to a platform'. How many words contain the letter 'l' in the sentence.

Ex Output:

2