Interested is related to Curious. you would Travel because Curious. Travel is a synonym of Traffic. 
Circumstance is a synonym of Consideration. Consideration is a type of Discussion. Discussion is a type of Speech. Speech is related to Article. 
Interested <--RelatedTo--> Curious <--MotivatedByGoal-- Travel <--Synonym--> Traffic 
Circumstance <--Synonym--> Consideration --IsA--> Discussion --IsA--> Speech <--RelatedTo--> Article 