Ethnic is related to Rice. Rice is related to Indian. Indian is a type of Airline. 
Ongoing is a synonym of Continuous. Continuous is similar to Endless. Endless is derived from End. End is related to Line. 
Ethnic <--RelatedTo--> Rice <--RelatedTo--> Indian --IsA--> Airline 
Ongoing <--Synonym--> Continuous <--SimilarTo--> Endless --DerivedFrom--> End <--RelatedTo--> Line 