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

Ex Input:
Sentence: 'a keyboard on a table with a toothbrush a book some sunglasses and coffee'. How many words contain the letter 'e' in the sentence.

Ex Output:
5


Ex Input:
Sentence: 'some stop lights that are at an intersection'. How many words contain the letter 'c' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'the emu is sitting in the dirt near a metal fence'. How many words contain the letter 'v' in the sentence.

Ex Output:

0