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

Ex Input:
Sentence: 'an elephant stands in the grass near a tree'. How many words contain the letter 'c' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a hotdog is in a bun covered in cheese'. How many words contain the letter 'q' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'there are two men playing frisbee together in the grass'. How many words contain the letter 'l' in the sentence.

Ex Output:

1