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

Ex Input:
Sentence: 'a man with a surfboard walking across a bridge towards the ocean'. How many words contain the letter 'w' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'a man holding an owl in a lush green field'. How many words contain the letter 'y' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'two women sit on stone steps and smile at the camera'. How many words contain the letter 'h' in the sentence.

Ex Output:

1