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

Ex Input:
Sentence: 'a boy tucks his knees to complete a jump on his skate board'. How many words contain the letter 'f' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a water fountain sitting in the middle of a bathroom'. How many words contain the letter 'h' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a star decoration is hanging in the middle of a room full of boxes wall motifs and pictures'. How many words contain the letter 'z' in the sentence.

Ex Output:

0