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

Ex Input:
Sentence: 'a television is sitting on a table in a room'. How many words contain the letter 'g' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a view from inside a train cart going down a track'. How many words contain the letter 'e' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a truck towing large equipment on a road'. How many words contain the letter 'j' in the sentence.

Ex Output:

0