Predicate: 服务
Roleset id: 服务.01, serve, act, work, performance of a service Source: serve.01 (serve.01)
Roles:
       
A0:
worker, entity performing a service/acting in some capacity
       
A1:
job, project, service performed
       
A2:
employer/recipient/beneficiary of service
Example:
       
这 为什么 目的 服务 。
       
A0: 这
       
A1: 目的
       
Rel: 服务