Nuclear is related to Waste. Waste is a synonym of Blow. Blow is a synonym of Boast. 
Open is a synonym of Surface. Surface is related to Stage. you are likely to find Performer in/at/on Stage. 
Nuclear <--RelatedTo--> Waste <--Synonym--> Blow <--Synonym--> Boast 
Open <--Synonym--> Surface <--RelatedTo--> Stage <--AtLocation-- Performer 