The PROJECTS set uses a mix of knowledge types including `axiom` for project facts, `derived` for lessons learned, and `prescribed` for project standards so that multiple forms of project knowledge can coexist in the same set.

**Knowledge types:** Mix of all three — `axiom` (project facts), `derived` (lessons learned), `prescribed` (project standards)

— PYRANA_Internal_Knowledge_Graph_Specification.md

Mix of all three

— PYRANA_Internal_Knowledge_Graph_Specification.md

`axiom` (project facts)

— PYRANA_Internal_Knowledge_Graph_Specification.md

`derived` (lessons learned)

— PYRANA_Internal_Knowledge_Graph_Specification.md

`prescribed` (project standards)

— PYRANA_Internal_Knowledge_Graph_Specification.md