arangosh> var examples = require("org/arangodb/graph-examples/example-graph.js");
arangosh> var graph = examples.loadGraph("social");
arangosh> graph.male.save({name: "Floyd", _key: "floyd"});
{ 
  "error" : false, 
  "_id" : "male/floyd", 
  "_rev" : "676292034", 
  "_key" : "floyd" 
}