Half is related to Turn. Roll is a type of Turn. Roll is related to Log. Catalog is derived from Log. 
Objective is related to Art. you are likely to find Monkey in/at/on Art. you are likely to find Monkey in/at/on Barrel. 
Half <--RelatedTo--> Turn <--IsA-- Roll <--RelatedTo--> Log <--DerivedFrom-- Catalog 
Objective <--RelatedTo--> Art <--AtLocation-- Monkey --AtLocation--> Barrel 