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

Ex Input:
Sentence: 'a person resting on a bench outside a furniture store'. How many words contain the letter 'e' in the sentence.

Ex Output:
6


Ex Input:
Sentence: 'a small terrier stands in the open suitcase ready to go'. How many words contain the letter 'l' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a dog lies on a pillow with its head on a shoe'. How many words contain the letter 'g' in the sentence.

Ex Output:

1