query: what did stephen hawking become famous for?
answers: [ ' A u t h o r ' , ' M a t h e m a t i c i a n ' , ' P r o f e s s o r ' , ' W r i t e r ' , ' C o s m o l o g i s t ' , ' P h y s i c i s t ' , ' A c t o r ' , ' A s t r o n o m e r ' , ' S c i e n t i s t ' , ' S c i e n c e w r i t e r ' ]