arango> edges.relation.inEdges("86294/1528086");
[ ]
arango> edges.relation.inEdges("86294/1593622");
[
{
"_id" : "1659158/3100950",
"_rev" : 3100950,
"_from" : "86294/1528086",
"_to" : "86294/1593622",
"label" :
"knows"
}
]