name,
    private void startFrameset(Attributes attrs)    {	String kind = attrs.getValue("kind");	if (!kind.equals("single-inheritance")) {	    throw new RuntimeException("Only single-inheritance FrameSets are supported!");	}	String relation_name = attrs.getValue("parent-relation");	String parent_kind = attrs.getValue("parent-kind");	String parent_slot = attrs.getValue("parent-slot");	String parent_value = attrs.getValue("parent-value");	String child_kind = attrs.getValue("child-kind");	String child_slot = attrs.getValue("child-slot");	String child_value = attrs.getValue("child-value");	frame_set = new SingleInheritanceFrameSet(sb, bbs,						  relation_name,						  parent_kind,						  parent_slot,						  parent_value,						  child_kind,						  child_slot,						  child_value);    }