[1] Universidade de Santiago de Compostela, Departamento de Electrónica e Computación, Santiago de Compostela, Spain
[2] KU Leuven, Department of Computer Science, Sint-Katelijne-Waver, Belgium
[3] Flanders Make – DTAI-FET, Belgium
[4] Leuven.AI – KU Leuven Institute for AI, Leuven,B-3000, Belgium
[5] Universidad Politécnica de Madrid, Campus de Montegancedo, Boadilla del Monte, Spain
[6] Semantic Technology Institute Innsbruck, Universität Innsbruck, Austria
[7] IDLab, Dept. of Electronics and Information Systems, Ghent University – imec, Belgium