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

Ex Input:
Sentence: 'a young girl plays tennis in a court with grass in the cracks'. How many words contain the letter 'w' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a sign reading butt street on the corner of a building with a no parking sign below it'. How many words contain the letter 'h' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'an intersection with a stop light and snow covered sidewalks'. How many words contain the letter 'g' in the sentence.

Ex Output:

1