We are given two sentences A and B. (A sentenceis a string of space separated words. Each word consists only of lowercase letters.)
A word is uncommonif it appears exactly once in one of the sentences, and does not appear in the other sentence.
Return a list of all uncommon words.
You may return the list in any order.
Example 1:
Input: A = "this apple is sweet", B = "this apple is sour"
Output: ["sweet","sour"]
Example 2:
Input: A = "apple apple", B = "banana"
Output: ["banana"]
Note:
- 0 <= A.length <= 200
- 0 <= B.length <= 200
- A and B both contain only spaces and lowercase letters.
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