Concert is related to Performance. you are likely to find Performance in/at/on Show. Show is the opposite of Hide. Surprise requires Hide. 
Gift is related to Return. Return is a type of Run. Run requires Stretch. Stretch is related to Flexibility. 
Concert <--RelatedTo--> Performance --AtLocation--> Show <--Antonym--> Hide <--HasPrerequisite-- Surprise 
Gift <--RelatedTo--> Return --IsA--> Run --HasPrerequisite--> Stretch <--RelatedTo--> Flexibility 