我可以定义 TSP 算法的 staring 节点吗？

问：

我使用Memgraph Lab的“首都和边界”数据集进行测试。我的查询遍历了所有首都城市：

MATCH (n:City)
WITH COLLECT(n) AS cities
CALL tsp.solve(cities, "1.5_approx") YIELD sources, destinations
WITH EXTRACT(i IN RANGE(0, SIZE(sources) - 1) | [sources[i], destinations[i]]) AS path
UNWIND path as edge
WITH edge[0] AS from, edge[1] AS to
CREATE (from)-[path:PATH]->(to)
RETURN from, to, path;

我对结果没问题，但是我可以定义TSP算法的起点吗？我希望推销员从伦敦开始。