Fighter is a type of Airplane. Fighter is related to Warrior. Warrior is related to Fighting. Fighting is related to Army. 
Indigenous is the opposite of Foreign. Foreign is related to Language. Language can be used for Communication. Communication is related to Explain. 
Airplane <--IsA-- Fighter <--RelatedTo--> Warrior <--RelatedTo--> Fighting <--RelatedTo--> Army 
Indigenous <--Antonym--> Foreign <--RelatedTo--> Language --UsedFor--> Communication <--RelatedTo--> Explain 