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

Input: Consider Input: Sentence: 'a girl laying on a couch with a bird on her head'. How many words contain the letter 'v' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a man in a white turban drives a motorcycle along a dirty road'. How many words contain the letter 'd' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'snow boarder in midflight inverted with a steep snowy slope in the background'. How many words contain the letter 'j' in the sentence.


Output: 0