问题: 能列举几种列车等级为空调快速的车次吗？
Cypher查询:
match (:ENTITY{name:'空调快速'})<-[:Relationship{name:'列车等级'}]- (p) return distinct  p.name
查询结果:
K210
L127次
K285次
K770
k248
K563
K566
K792
K789
K308
K564
K565
K2288
K2285
K791
K2286/K2287
K264
K2285/K2288
K234
K235
K236
K1450
K1451
K1277
K1276
K1449
K1278
K1275
K1452
K277
K274
K216
K215
K419
K190
k157次
K261
K263
K307
K305
K790