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

Ex Input:
Sentence: 'two motorcycle riders pose with motorcycles in front of a brick building'. How many words contain the letter 'c' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'a giraffe walking in the grass near a building'. How many words contain the letter 'd' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a man with a backpack riding on a tall bicycle near the ocean'. How many words contain the letter 'f' in the sentence.

Ex Output:

0