@Override
 public boolean addDynamicSourceCode(DynamicSourceCodeBuilder<T> builder, String variableName) {
   String address = builder.addFeatureVariable(addressFunction, "address");
   builder.append(
       "if ("
           + address
           + "!=null && "
           + address
           + ".getPosTaggedToken().getPossessorNumber()!=null) {");
   builder.indent();
   builder.append(variableName + " = " + address + ".getPosTaggedToken().getPossessorNumber();");
   builder.outdent();
   builder.append("}");
   return true;
 }