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

Ex Input:
Sentence: 'there is a plate if food with broccoli fish and a baked potato'. How many words contain the letter 'k' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a van follows behind a bus on a rural road'. How many words contain the letter 'q' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a baby putting its hand in a blue and white cake'. How many words contain the letter 'g' in the sentence.

Ex Output:

1