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

Ex Input:
Sentence: 'looking out a window at a tall building with a clock on the face'. How many words contain the letter 'l' in the sentence.

Ex Output:
4


Ex Input:
Sentence: 'group of kids play frisbee golf in the middle of the woods'. How many words contain the letter 't' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a man and child sitting on a futon next to a chair and table'. How many words contain the letter 'g' in the sentence.

Ex Output:

1