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

Ex Input:
Sentence: 'a giraffe walking in the grass near a building'. How many words contain the letter 'd' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a woman sitting in a chair next to a tea table in the woods'. How many words contain the letter 'i' in the sentence.

Ex Output:
4


Ex Input:
Sentence: 'a small toilet in a bathroom with tile walls'. How many words contain the letter 'j' in the sentence.

Ex Output:

0