SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/GNOWSYS> <http://dbpedia.org/ontology/developer> ?uri. <http://dbpedia.org/resource/GNU_TeXmacs> <http://dbpedia.org/ontology/developer> ?uri . }
List the developers who has contributed to both GNOWSYS and GNU TeXmacs?
SELECT DISTINCT ?z WHERE { resource:G_N_U_Te_Xmacs property:developer ?z . . resource:G_N_O_W_S_Y_S property:developer ?z }
GNU
[GNU] is the developer of both GNOWSYS and GNU TeXmacs.
[GNU] is a developer of both products.