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

Ex Input:
Sentence: 'a sign asking for witnesses is posted in front of a destroyed home'. How many words contain the letter 'y' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'there is a small bowl of soup and vegetables'. How many words contain the letter 'g' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a toilet and long handled plunger in a cleaned bathroom'. How many words contain the letter 'i' in the sentence.

Ex Output:

2