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

Ex Input:
Sentence: 'bus moving through parking lot in front of building'. How many words contain the letter 'g' in the sentence.

Ex Output:
4


Ex Input:
Sentence: 'a pizza sitting on top of a black cutting board'. How many words contain the letter 'g' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a person standing in a bod of water and holding a kite'. How many words contain the letter 'f' in the sentence.

Ex Output:

1