[Python3] 99% Faster Solution
\nclass Solution:\n    def uncommonFromSentences(self, A: str, B: str) -> List[str]:\n        uncommon = []\n        \n        def find_uncommon(s , t):\n      
```\nclass Solution:\n    def uncommonFromSentences(self, A: str, B: str) -> List[str]:\n        uncommon = []\n        \n        def find_uncommon(s , t):\n            ans = []\n            for i in s:\n                if(s.count(i) == 1 and i not in t):\n                    ans.append(i)\n            \n            return ans\n        \n        return find_uncommon(A.split() , B.split()) + find_uncommon(B.split() , A.split())\n    \n```
['Python3']