我能够在 IBM Graph 中成功构建顶点，但是当我执行查询时，输出不显示顶点之间的边。我正在运行以下代码：
def v1 = graph.addVertex("name", "Darshit", label, "Inventorymanager","zip","95112");
def v2 = graph.addVertex("name", "Vikas", label, "Vendor","zip","95112");
def v3 = graph.addVertex("name", "Sidharth", label, "Vendor","zip","95112");
def v4 = graph.addVertex("name", "iPhone7", label, "Item","price",750,"quantity",10);
def v5 = graph.addVertex("name", "chair", label, "Item","price",20,"quantity",15);
def v6 = graph.addVertex("name", "laptop", label, "Item","price",800,"quantity",3);
v1.addEdge("ordered_to", v2);
v1.addEdge("ordered_to", v3);
v2.addEdge("has", v4);
v3.addEdge("has", v5);
v2.addEdge("has", v6);
v3.addEdge("has", v6);
def g = graph.traversal();
g.V().has("name", "Darshit").out("ordered_to").has("name", "Vikas").path();