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

Ex Input:
Sentence: 'computer and a monitor on a wooden desk next to a laptop'. How many words contain the letter 'm' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'some soldiers cutting into a big sheet cake on a table'. How many words contain the letter 'c' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a tower has a clock cupola and ornate roof'. How many words contain the letter 'q' in the sentence.

Ex Output:

0