@prefix resto: <http://example.org/restaurant#>.

{   ?restaurant resto:hasReservation ?reservation.
    ?reservation resto:onDate ?date;
        resto:place ?place.
    ?place resto:isOutside ?outside.
}
=>
{   ?restaurant resto:hasReservation ?reservation.
    ?reservation resto:onDate ?date;
        resto:place ?place.
    ?place resto:isOutside ?outside.
}.

