ruler

graph TD; style role/ruler fill:#2fa4e7,stroke:#333,stroke-width:4px; being/human(["human"]) object/greater_light(["greater light"]) object/lesser_light(["lesser light"]) role/ruler(["ruler"]) click being/human "../../being/human/" click object/greater_light "../../object/greater_light/" click object/lesser_light "../../object/lesser_light/" click role/ruler "../../role/ruler/" being/human -->|role as| role/ruler object/lesser_light -->|role as| role/ruler object/greater_light -->|role as| role/ruler