Wander is the opposite of Settle. Settle is a synonym of Install. Post is a type of Install. 
Bar is related to Tube. Tube is related to Level. Level is a synonym of Layer. 
Wander <--Antonym--> Settle <--Synonym--> Install <--IsA-- Post 
Bar <--RelatedTo--> Tube <--RelatedTo--> Level <--Synonym--> Layer 