East is related to Silk. Silk is related to Dress. Dress is a type of Finish. 
Celebration is related to Event. Event is related to Cause. Cause is the opposite of Symptom. 
East <--RelatedTo--> Silk <--RelatedTo--> Dress --IsA--> Finish 
Celebration <--RelatedTo--> Event <--RelatedTo--> Cause <--Antonym--> Symptom 