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

Ex Input:
Sentence: 'a laptop is displayed on a small wooden platform'. How many words contain the letter 'k' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a woman with a green umbrella crosses the wet street'. How many words contain the letter 'q' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a kitty sleeping on a mouse pad and a mouse'. How many words contain the letter 'i' in the sentence.

Ex Output:

2