Authorize is a synonym of Commission. Commission is a type of Equip. Equip is a synonym of Fit. 
Walk is related to Shopping. Shopping is related to Note. Comment is a type of Note. 
Authorize <--Synonym--> Commission --IsA--> Equip <--Synonym--> Fit 
Walk <--RelatedTo--> Shopping <--RelatedTo--> Note <--IsA-- Comment 