Dance is related to Performance. Benefit is a type of Performance. Benefit is a synonym of Welfare. 
Retain is a type of Keep. Retain is the opposite of Slip. Fall requires Slip. Fall is related to Fast. 
Dance <--RelatedTo--> Performance <--IsA-- Benefit <--Synonym--> Welfare 
Keep <--IsA-- Retain <--Antonym--> Slip <--HasPrerequisite-- Fall <--RelatedTo--> Fast 