Project(Union(LeftJoin(LeftJoin(LeftJoin(BGP( ?classification <http://www.w3.org/2000/01/rdf-schema#label> ?cl_label .
                                          ?frameworkId <http://www.w3.org/2000/01/rdf-schema#label> ?framework .
                                          ?classification <https://w3id.org/i40/sto#isDescribedin> ?frameworkId),
                                         BGP( ?classification <http://www.w3.org/2000/01/rdf-schema#comment> ?cl_comment)),
                                BGP( ?classification <https://w3id.org/i40/sto#frames> ?concern .
                                     <https://w3id.org/i40/sto#frames> <http://www.w3.org/2000/01/rdf-schema#label> ?relation1)),
                       BGP( ?classification <https://w3id.org/i40/sto#alignesWith> ?classification2 .
                            <https://w3id.org/i40/sto#alignesWith> <http://www.w3.org/2000/01/rdf-schema#label> ?relation2)),
              LeftJoin(BGP( ?concern <http://www.w3.org/2000/01/rdf-schema#label> ?co_label),
                       BGP( ?concern <http://www.w3.org/2000/01/rdf-schema#comment> ?co_comment))),
        {?cl_label, ?cl_comment, ?framework, ?co_label, ?co_comment, ?classification, ?relation1, ?concern, ?relation2, ?classification2})