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

Ex Input:
Sentence: 'a bench is in the ocean water with a fishing pole'. How many words contain the letter 'm' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'two cakes on a table with a piece missing out of one'. How many words contain the letter 'h' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'three women a man and a dog relax on the dock between boats'. How many words contain the letter 'm' in the sentence.

Ex Output:

2