@prefix log: <http://www.w3.org/2000/10/swap/log#>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.
@prefix q: <http://www.w3.org/2004/ql#>.
@prefix : <http://www.agfa.com/w3c/euler/socrates#>.

{ ?who a ?what } => { ?who a ?what }.