Increase is the opposite of Sink. Sink is a synonym of Pass. Pass is a synonym of Move. Sweep is a type of Move. 
Orientation is related to Landscape. Landscape is related to Type. Type is related to Iron. Iron is related to Cast. 
Increase <--Antonym--> Sink <--Synonym--> Pass <--Synonym--> Move <--IsA-- Sweep 
Orientation <--RelatedTo--> Landscape <--RelatedTo--> Type <--RelatedTo--> Iron <--RelatedTo--> Cast 