Most Common Word

import reclass Solution:    def mostCommonWord(self, paragraph: str, banned: List[str]) -> str:        #List words in paragraph, replacing punctuation with ' ' and all lower case        paragraph = re.subn("[.,!?;']", ' ', paragraph.lower())[0].split(' ')        #Remove any '' or words in banned from paragraph list        paragraph = list(filter(lambda x: x not in banned + [''], paragraph))        #Return most common word in filtered list        return Counter(paragraph).most_common(1)[0][0]