sb.append(" { id:").append(nqs(tu.getId())).append(",\n\t"); printINameable(sb, "\t", tu); DocumentPart dp = e.getDocumentPart(); sb.append(" { id:").append(nqs(dp.getId())).append(",\n\t"); printINameable(sb, "\t", dp); sb.append("referent:").append(dp.isReferent()).append(", "); sb.append("#refs:").append(dp.getReferenceCount()); StartGroup sg = e.getStartGroup(); sb.append(" { id:").append(nqs(sg.getId())).append(", "); printINameable(sb, "\t", sg); sb.append("}"); } else if (e.isEndGroup()) {