Person wants (to) Luck. Person is related to Portrait. Portrait is a different concept from Landscape. Landscape is related to Scene. 
Ear is related to Item. Item is related to Pie. 
Luck <--Desires-- Person <--RelatedTo--> Portrait <--DistinctFrom--> Landscape <--RelatedTo--> Scene 
Ear <--RelatedTo--> Item <--RelatedTo--> Pie 