Finish is the opposite of Beginning. Beginning is related to Seed. Seed is the opposite of Flower. Flower is related to Grass. 
Bad is related to Crime. Crime is related to Witness. 
Finish <--Antonym--> Beginning <--RelatedTo--> Seed <--Antonym--> Flower <--RelatedTo--> Grass 
Bad <--RelatedTo--> Crime <--RelatedTo--> Witness 