Qualify is a synonym of Entitle. Entitle is a synonym of Enable. Equip is a type of Enable. Instrument is a type of Equip. 
Extend is related to Long. Long is related to Description. 
Qualify <--Synonym--> Entitle <--Synonym--> Enable <--IsA-- Equip <--IsA-- Instrument 
Extend <--RelatedTo--> Long <--RelatedTo--> Description 