问题: 蛋包饭源于哪里？主要食材有哪些？
Cypher查询:
match (:ENTITY{name:'蛋包饭[日本家常主食]'})-[:Relationship{name:'来源'}]->(n) return n.name as name union all match (:ENTITY{name:'蛋包饭[日本家常主食]'})-[:Relationship{name:'主要食材'}]->(m) return m.name as name
查询结果:
日本
蛋皮，咖哩酱，香米，肉类，青豆，红萝卜