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

Ex Input:
Sentence: 'man and woman posing for picture before prom'. How many words contain the letter 'c' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a woman with a shopping bag talking on a cell phone'. How many words contain the letter 'e' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a man hitting a baseball with a bat on a field'. How many words contain the letter 'y' in the sentence.

Ex Output:

0