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

Ex Input:
Sentence: 'a view from a plane window near a large snowy peak'. How many words contain the letter 'u' in the sentence.

Ex Output:
0

Ex Input:
Sentence: 'a sleek and pointy fighter jet flying in the sky'. How many words contain the letter 'f' in the sentence.

Ex Output:
2

Ex Input:
Sentence: 'a man with black sandles standing in a dress store'. How many words contain the letter 'y' in the sentence.

Ex Output:
0