query([]) :-
geost(2,
          [[oid-1,sid-1,x-[[v-37],[v-0]]],
           [oid-2,sid-2,x-[[v-0],[v-0]]],
           [oid-3,sid-3,x-[[v-38],[v-0]]],
           [oid-4,sid-4,x-[[v-2],[v-0]]],
           [oid-5,sid-5,x-[[v-17],[v-9]]],
           [oid-6,sid-6,x-[[v-0],[v-35]]],
           [oid-7,sid-7,x-[[v-21],[v-34]]],
           [oid-8,sid-8,x-[[v-22],[v-26]]],
           [oid-9,sid-9,x-[[v-6],[v-0]]],
           [oid-10,sid-10,x-[[v-0],[v-25]]],
           [oid-11,sid-11,x-[[v-6],[v-9]]],
           [oid-12,sid-12,x-[[v-22],[v-14]]],
           [oid-13,sid-13,x-[[v-24],[v-0]]]],
          [[sid-1,t-[[v-0],[v-0]],l-[[v-1],[v-26]]],
           [sid-2,t-[[v-0],[v-0]],l-[[v-2],[v-25]]],
           [sid-3,t-[[v-0],[v-0]],l-[[v-3],[v-24]]],
           [sid-4,t-[[v-0],[v-0]],l-[[v-4],[v-23]]],
           [sid-5,t-[[v-0],[v-0]],l-[[v-5],[v-22]]],
           [sid-6,t-[[v-0],[v-0]],l-[[v-21],[v-6]]],
           [sid-7,t-[[v-0],[v-0]],l-[[v-20],[v-7]]],
           [sid-8,t-[[v-0],[v-0]],l-[[v-19],[v-8]]],
           [sid-9,t-[[v-0],[v-0]],l-[[v-18],[v-9]]],
           [sid-10,t-[[v-0],[v-0]],l-[[v-17],[v-10]]],
           [sid-11,t-[[v-0],[v-0]],l-[[v-11],[v-16]]],
           [sid-12,t-[[v-0],[v-0]],l-[[v-15],[v-12]]],
           [sid-13,t-[[v-0],[v-0]],l-[[v-13],[v-14]]]]).