# Yard — Raw data warehouse > The warehouse under the curation. Yard is the raw warehouse of ingested databases that Kiln curates on top of, 2,000+ integrated databases assembled into a knowledge graph of 60B+ RDF triples. It is the substrate our models train on and our data-gap analysis reads from. ## Key facts - **2,000+** — integrated databases - **60B+** — RDF triples in the knowledge graph - **1** — graph the whole platform reads from ## What Yard does ### One knowledge graph Thousands of sources land in a single graph structure instead of scattered, incompatible files. ### The training substrate Our in-house models train on the entire Yard graph, giving them far more signal than public data alone. ### Feeds gap analysis Gaps reads Yard to decide which endpoints have evidence and which are genuinely empty. ## Works closely with - [Kiln](https://toxindex.com/platform/kiln.md): Curated database layer - [Pleiome](https://toxindex.com/platform/pleiome.md): Generative multi-property transformer - [Gaps](https://toxindex.com/platform/gaps.md): Automated data-gap analysis ## Frequently asked questions **What is Yard?** Yard is the raw warehouse of ingested databases Kiln curates on top of, 2,000+ integrated databases assembled into a knowledge graph of 60B+ RDF triples. **Who uses Yard directly?** Yard is the substrate the in-house models train on and the graph Gaps reads to tell a real data gap from one already covered elsewhere. **Is Yard the same as Kiln?** No. Yard is the raw, comprehensive warehouse; Kiln is the curated, normalized layer built on top of it for querying. --- Canonical page: https://toxindex.com/platform/yard