from langchain.graphs import Neo4jGraph graph = Neo4jGraph() graph.query( """ MERGE (m:Movie {name:"Top Gun"}) WITH m UNWIND ["Tom Cruise", "Val Kilmer", "Anthony Edwards", "Meg Ryan"] AS actor MERGE (a:Actor {name:actor}) MERGE (a)-[:ACTED_IN]->(m) WITH a WHERE a.name = "Tom Cruise" MERGE (a)-[:ACTED_IN]->(:Movie {name:"Mission Impossible"}) """ )