[How to: construct knowledge graphs](https://python.langchain.com/docs/how_to/graph_constructing): LLM should read this page when constructing knowledge graphs from unstructured text, storing information in a graph database, using LLM Graph Transformer to extract knowledge from text. This page explains how to set up a Neo4j graph database, use LLMGraphTransformer to extract structured knowledge graph data from text, filter extracted nodes/relationships, and store the knowledge graph in Neo4j.

