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

Ex Input:
Sentence: 'a woman is smiling next to a dog'. How many words contain the letter 'j' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'an elephant standing on a green grass area'. How many words contain the letter 'm' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a child is ready to break apart the pizza'. How many words contain the letter 'a' in the sentence.

Ex Output:

5