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

Ex Input:
Sentence: 'a bunch of people in a big field filled with bananas'. How many words contain the letter 'r' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a man skiing through a snowcovered street area'. How many words contain the letter 'p' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a car on the water with some flying kites'. How many words contain the letter 'c' in the sentence.

Ex Output:

1