Question: 一战是何时开始和结束的
Answer: 1918-11-11; 11/11/1918; 1918 november, 11; 11 11 1918; 11-11-1918; 11 十一月 1918; 1918-11-11; 1918 十一月 11; 1918 11 11; 1914-07-28; 28 07 1914; 1914-07-28; 28-07-1914; 28 七月 1914; 07 28 1914; 07/28/1914; 1914 07 28; 1914 七月 28; 1914 july, 28; 07-28-1914; 28/07/1914