arangosh> db._create("vertex");
[ArangoCollection 505869195, "vertex" (type document, status loaded)]
arangosh> db._createEdgeCollection("relation");
[ArangoCollection 506000267, "relation" (type edge, status loaded)]
arangosh> myGraph.v1 = db.vertex.insert({ name : "vertex 1" });
{ 
  "_id" : "vertex/506327947", 
  "_rev" : "506327947", 
  "_key" : "506327947" 
}
arangosh> myGraph.v2 = db.vertex.insert({ name : "vertex 2" });
{ 
  "_id" : "vertex/506524555", 
  "_rev" : "506524555", 
  "_key" : "506524555" 
}
arangosh> myGraph.e1 = db.relation.insert(myGraph.v1, myGraph.v2, { label : "knows" });
{ 
  "_id" : "relation/506852235", 
  "_rev" : "506852235", 
  "_key" : "506852235" 
}
arangosh> db._document(myGraph.e1);
{ 
  "label" : "knows", 
  "_id" : "relation/506852235", 
  "_rev" : "506852235", 
  "_key" : "506852235", 
  "_from" : "vertex/506327947", 
  "_to" : "vertex/506524555" 
}
arangosh> db.relation.outEdges(myGraph.v1._id);
[ 
  { 
    "_id" : "relation/506852235", 
    "_key" : "506852235", 
    "_rev" : "506852235", 
    "_from" : "vertex/506327947", 
    "_to" : "vertex/506524555", 
    "label" : "knows" 
  } 
]
arangosh> db.relation.outEdges(myGraph.v2._id);
[ ]