本体定义 重庆师茏大学 CHONG ONG NORMAL UNIVERSITY 口“911本体描述 Class Clas Terrorist Terrorist Organization Terrorist Event type has Leader implicated Osama bin Laden al Qaeda Pentagon resides Implicated In date citizenof location Afghanistan World Trade Center 2001-09-11 Saudi arabia Washington,DC 2001-09-11 location New York, NY本体定义  “911”本体描述