Ill is similar to Green. Green is related to Islam. Islam is a type of Civilization. Civilization is related to Western. 
Examination is related to School. you are likely to find Mouse in/at/on School. you are likely to find Mouse in/at/on Tunnel. 
Ill <--SimilarTo--> Green <--RelatedTo--> Islam --IsA--> Civilization <--RelatedTo--> Western 
Examination <--RelatedTo--> School <--AtLocation-- Mouse --AtLocation--> Tunnel 