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

Ex Input:
Sentence: 'a woman smiling for the camera while on a boat'. How many words contain the letter 'e' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'a piece of half eaten swirl cheesecake on a plate'. How many words contain the letter 'j' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a tennis player is hitting the ball on the court'. How many words contain the letter 'r' in the sentence.

Ex Output:

2