Improve perfomance with too many query variables about building-navigator HOT 6 CLOSED

PREFIX owl: <http://www.w3.org/2002/07/owl#>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX dc: <http://purl.org/dc/elements/1.1/>
PREFIX geo: <http://www.w3.org/2003/01/geo/>
PREFIX plcOnt: <http://behindertenverband-leipzig.de/place-ontology/>
PREFIX elvOnt: <https://github.com/AKSW/leds-asp-f-ontologies/blob/master/ontologies/elevator/ontology.ttl#>
PREFIX unitMeas: <https://github.com/AKSW/leds-asp-f-ontologies/blob/master/ontologies/unit-and-measurements/ontology.ttl#>
PREFIX lePlace: <http://le-online.de/place/>
PREFIX leNs: <http://le-online.de/ontology/place/ns#>

SELECT ?uri ?id ?title ?long AS ?lng ?lat
    ?elevatorCabineIsAvailable ?elevatorCabineLength ?elevatorCabineWidth ?elevatorDoorWidth ?elevatorCabineHighestButtonOutside ?elevatorCabineHighestButtonInside
FROM <http://building-navigator.de/>
WHERE {
    ?uri rdf:type plcOnt:place ;
        plcOnt:ID ?id ;
        dc:title ?title ;
        geo:long ?long ;
        geo:lat ?lat ;
        elvOnt:hasElevatorCabine ?elevatorCabineUri .
    ?elevatorCabineUri elvOnt:isAvailable ?elevatorCabineIsAvailable ;
        unitMeas:length ?elevatorCabineLengthUri ;
        unitMeas:width ?elevatorCabineWidthUri ;
        elvOnt:hasDoorWidth ?elevatorDoorWidthUri ;
        elvOnt:highestDistanceOfControlPanelButtonFromGroundInside ?elevatorCabineHighestButtonOutsideUri ;
        elvOnt:highestDistanceOfControlPanelButtonFromGroundOutside ?elevatorCabineHighestButtonInsideUri .
    ?elevatorCabineLengthUri unitMeas:cm ?elevatorCabineLength . 
    ?elevatorCabineWidthUri unitMeas:cm ?elevatorCabineWidth .
    ?elevatorDoorWidthUri unitMeas:cm ?elevatorDoorWidth .
    ?elevatorCabineHighestButtonOutsideUri unitMeas:cm ?elevatorCabineHighestButtonOutside .
    ?elevatorCabineHighestButtonInsideUri unitMeas:cm ?elevatorCabineHighestButtonInside .
}
LIMIT 30

PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX dc: <http://purl.org/dc/elements/1.1/>
PREFIX geo: <http://www.w3.org/2003/01/geo/>
PREFIX plcOnt: <http://behindertenverband-leipzig.de/place-ontology/>

SELECT ?uri ?id ?category ?title ?long AS ?lng ?lat
    ?elevatorCabineIsAvailable ?elevatorIsWheelchairAccessible
FROM <http://building-navigator.de/>
WHERE {
    ?uri rdf:type plcOnt:place .
    ?uri plcOnt:ID ?id .
    ?uri plcOnt:category ?category .
    ?uri plcOnt:elevatorCabineIsAvailable ?elevatorCabineIsAvailable .
    ?uri plcOnt:elevatorIsWheelchairAccessible ?elevatorIsWheelchairAccessible .
    ?uri dc:title ?title .
    ?uri geo:long ?long .
    ?uri geo:lat ?lat .
}
LIMIT 30

    ?uri <http://schema.org/streetAddress> ?streetAddress .
    ?uri <http://schema.org/postalCode> ?postalCode .
    ?uri <http://schema.org/addressLocality> ?addressLocality .