问题: 告诉我哪种物质吞咽，吸入会极度致癌呢？
Cypher查询:
match (m:ENTITY{name:'吞咽，吸入极毒致癌'})<-[:Relationship{name:'危险性描述'}]- (n) return distinct n.name
查询结果:
Be[金属元素铍]