# Construct migration triples with tm: vocabulary. PREFIX tm: PREFIX migrants: PREFIX migp: CONSTRUCT { ?s a tm:Migration . ?s tm:migrant ?person . ?s tm:startPlace ?startPlace . ?s tm:destinationPlace ?destPlace . ?s tm:reason ?reason . ?s tm:secondaryReason ?reason2 . ?s tm:dateStartMin ?dsMin . ?s tm:dateStartMax ?dsMax . ?s tm:dateEndMin ?deMin . ?s tm:dateEndMax ?deMax . ?s tm:dateStartFuzzy ?dsFuzzy . ?s tm:dateEndFuzzy ?deFuzzy . ?s tm:via ?via . } WHERE { ?s a migrants:migration_table . OPTIONAL { ?s migp:ref-IDPerson ?person } OPTIONAL { ?s migp:ref-IDStartPlace ?startPlace } OPTIONAL { ?s migp:ref-IDDestPlace ?destPlace } OPTIONAL { ?s migp:reason ?reason } OPTIONAL { ?s migp:reason2 ?reason2 } OPTIONAL { ?s migp:DateStart_Min ?dsMin } OPTIONAL { ?s migp:DateStart_Max ?dsMax } OPTIONAL { ?s migp:DateEnd_Min ?deMin } OPTIONAL { ?s migp:DateEnd_Max ?deMax } OPTIONAL { ?s migp:DateStart_Fuzzy ?dsFuzzy } OPTIONAL { ?s migp:DateEnd_Fuzzy ?deFuzzy } OPTIONAL { ?s migp:via ?via } }