knowledge base construction, considering task complexion, we put forward recovering the orient word in the spatial relation; constructing knowledge base, including orientation knowledge base, entity knowledge base, graphic knowledge base, constraint knowledge base 根据任务的情况,提出空间关系的预处理,即恢复省略方位词的空间关系中的方位词;提出知识库的构建,包含方位知识库、实体知识库、图形知识库、约束知识库。