Supportive is derived from Support. Support is related to Function. Function is related to Voice. Voice is a synonym of Vote. 
Deputy is a type of Legislator. Deputy is a different concept from Captain. Captain is related to Soldier. 
Supportive --DerivedFrom--> Support <--RelatedTo--> Function <--RelatedTo--> Voice <--Synonym--> Vote 
Legislator <--IsA-- Deputy <--DistinctFrom--> Captain <--RelatedTo--> Soldier 