Racism is a type of Bias. Racism can be Bad. Bad is related to Coal. 
you are likely to find Arena in/at/on Stadium. Stadium is a type of Structure. Structure is etymologically related to Destroy. Destroy is related to Super. 
Bias <--IsA-- Racism --HasProperty--> Bad <--RelatedTo--> Coal 
Arena --AtLocation--> Stadium --IsA--> Structure --EtymologicallyRelatedTo--> Destroy <--RelatedTo--> Super 