Emerge is a type of Surface. Emerge is a synonym of Escape. Slip is a type of Escape. Slip is the opposite of Steady. 
Keep is related to Include. Include is related to Accept. Accept is a synonym of Pass. Pass is a type of Flight. 
Surface <--IsA-- Emerge <--Synonym--> Escape <--IsA-- Slip <--Antonym--> Steady 
Keep <--RelatedTo--> Include <--RelatedTo--> Accept <--Synonym--> Pass --IsA--> Flight 