People can be Crazy. People is related to Association. 
Green is related to Grass. you are likely to find Grass in/at/on Ground. Ground is related to Coffee. Coffee is related to Can. 
Crazy <--HasProperty-- People <--RelatedTo--> Association 
Green <--RelatedTo--> Grass --AtLocation--> Ground <--RelatedTo--> Coffee <--RelatedTo--> Can 