The Toynbee Convector
"The Toynbee Convector" is a science fiction short story by American writer Ray Bradbury . 
<triplet> The Toynbee Convector <subj> science fiction <obj> genre <subj> short story <obj> genre <subj> Ray Bradbury <obj> author <triplet> Ray Bradbury <subj> science fiction <obj> genre