Pig is related to Origin. Preliminary is a type of Origin. Preliminary is a synonym of Introduction. 
Horizon is a synonym of View. View is related to Window. Window is a type of Opening. Opening is a type of Motion. 
Pig <--RelatedTo--> Origin <--IsA-- Preliminary <--Synonym--> Introduction 
Horizon <--Synonym--> View <--RelatedTo--> Window --IsA--> Opening --IsA--> Motion 