Given Relationship: 'be trademark of', Sentence: 'X Window System is a trademark of X Consortium , Inc. == = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = The following is applicable to Libresolv : Copyright 1983 , 1987 , 1989 The Regents of the University of California .'
trademark