---column1--- | ---column2--- |
---two---
---three---
---four---
---five---
---six---
---seven---
---catdb--- | class Department extends common<Department> { |
class Person extends common<Person> { | abstract class common<T extends common> { |
class Division extends common<Division> { | class childrenOf_parentsOf extends common<childrenOf_parentsOf> { |
class employs_worksin extends common<employs_worksin> { |