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

Ex Input:
Sentence: 'the view of a pier throw rain covered window'. How many words contain the letter 'p' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'two skiers standing side by side in the snow posing for a picture'. How many words contain the letter 'u' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a skateboard which is missing at least one wheel'. How many words contain the letter 'g' in the sentence.

Ex Output:

1