> For the complete documentation index, see [llms.txt](https://relationlabs.gitbook.io/protocol/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://relationlabs.gitbook.io/protocol/contract-open-standard/relationship.md).

# Relationship

In a social graph, each individual is represented by a node while the relationship between them is represented by edges.

The edges are important, for they describe human interactions. P2P and Grouping relationships are two basic relationship types. A grouping relationship connects multiple nodes via a third-party node.

Relation Protocol defines to modules for Relationship:

* follow module: build a single-direction peer to peer relationship
* dao module: build a grouping relationship connecting multiple nodes through a DAO