优选词，正式主题词
Work permit
类型
实体类型- Descriptor
此概念交替术语
- Blue card
- Green card
范围注释，叙词含义说明
概念使用与范围的说明- Stands for the permission to take a job within a foreign country.
UseInsteadNote
The note consists of a blank node. It contains a rdfs:value literal which designates the aspect and a rdfs:seeAlso link to the concept which should be used instead.其它语言
其它语言中概念术语URI
http://zbw.eu/stw/descriptor/30414-4