# Relational information The entities in this section act as links or relations between other entities, adding meaningful edges to the graph for analytics and credit tracking. Note that this selection of entities do not capture the entire metadata capability of the system, only to model the graph relations for a subset of properties. The entities[Research object](/data-layer-definition/entities/research-object.md) and [Research component](/data-layer-definition/entities/research-component.md) can both hold uncapped collections of arbitrary metadata, and the [Attestation](/data-layer-definition/entities/attestation.md) captures community suggestions for said metadata and is technically applicable to any type of entity. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://codex.desci.com/data-layer-definition/entities/relational-information.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.