+relationcanvas 141698 relation_ref 138754 // <generalisation>
+ from ref 141314 z 2011 to ref 128898
+ no_role_a no_role_b
+ no_multiplicity_a no_multiplicity_b
+end
+relationcanvas 141826 relation_ref 138882 // <unidirectional association>
+ from ref 128898 z 2001 to point 104 171
+ line 141954 z 2001 to ref 136450
+ no_role_a no_role_b
+ no_multiplicity_a no_multiplicity_b
+end