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

Input: Consider Input: Sentence: 'a young man dressed like a pirate on a skateboard'. How many words contain the letter 'a' in the sentence.

Output: 6


Input: Consider Input: Sentence: 'two women in an arena with a cow'. How many words contain the letter 'u' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a woman with glasses drying her hair with a blowdryer'. How many words contain the letter 'w' in the sentence.


Output: 4