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

Ex Input:
Sentence: 'group of horses in a field with a pinto in the foreground'. How many words contain the letter 'h' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'a person that is wearing glasses looking into a mirror'. How many words contain the letter 'f' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a white and red no parking anytime sign'. How many words contain the letter 'h' in the sentence.

Ex Output:

1