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

Ex Input:
Sentence: 'a bearded man sits on a couch with an electronic device in his hand'. How many words contain the letter 'e' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'a young man in a bunch of waves on his board'. How many words contain the letter 'j' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'older people are sitting at a long table eating'. How many words contain the letter 'd' in the sentence.

Ex Output:

1