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

Ex Input:
Sentence: 'a person holds a video game remote as another man looks on'. How many words contain the letter 'g' in the sentence.

Ex Output:
1


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: 'airplanes are in formation against the blue sky'. How many words contain the letter 'f' in the sentence.

Ex Output:

1