Vienna/Valladolid – “You rich spirit with unknown treasures” begins a poem that Franz Grillparzer dedicated to the Spanish playwright Lope de Vega. Two researchers from the Universities of Valladolid and Vienna have discovered such an “unknown treasure” with the help of an artificial intelligence co-developed in Innsbruck. That might lead to further finds, says the literary scholar Álvaro Cuéllar (27), also in Austria.