One is related to Unit. Unit is related to Empire. Empire is related to Region. Domain is a type of Region. 
Steady is a synonym of Calm. Calm is related to State. Unemployment is a type of State. 
One <--RelatedTo--> Unit <--RelatedTo--> Empire <--RelatedTo--> Region <--IsA-- Domain 
Steady <--Synonym--> Calm <--RelatedTo--> State <--IsA-- Unemployment 