diff --git a/examples/plenary/README.md b/examples/plenary/README.md
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+## Vocabs
+
+* [Schema.org](https://schema.org)
+  * [Event](https://schema.org/Event)
+  * [Role](https://schema.org/Role)
+* [Organization Activity ontology](https://innoweb.mondragon.edu/ontologies/dabgeo/domain-task/application_type/organization_energy_assessment/organizationactivity/1.0/index.html) 
+  * [Chair](https://innoweb.mondragon.edu/ontologies/dabgeo/domain-task/application_type/organization_energy_assessment/organizationactivity/1.0/index.html#http://ontologies.smile.deri.ie/pdo#Chair)
+  * [Scribe](https://innoweb.mondragon.edu/ontologies/dabgeo/domain-task/application_type/organization_energy_assessment/organizationactivity/1.0/index.html#http://ontologies.smile.deri.ie/pdo#Scribe)
+  * [Attendee](https://innoweb.mondragon.edu/ontologies/dabgeo/domain-task/application_type/organization_energy_assessment/organizationactivity/1.0/index.html#http://ontologies.smile.deri.ie/pdo#Attendee)
+  * [Absentee](https://innoweb.mondragon.edu/ontologies/dabgeo/domain-task/application_type/organization_energy_assessment/organizationactivity/1.0/index.html#http://ontologies.smile.deri.ie/pdo#Absentee)
+
+## Shapes
+
+* [Event](https://github.com/janeirodigital/sai-js/blob/main/packages/css-storage-fixture/shapetrees/shapes/Event%24.shex)
+* [Role](https://github.com/janeirodigital/sai-js/blob/main/packages/css-storage-fixture/shapetrees/shapes/Role%24.shex)
+
+## Trees
+
+* [Event](https://github.com/janeirodigital/sai-js/blob/main/packages/css-storage-fixture/shapetrees/trees/Event%24.ttl)
+* [Role](https://github.com/janeirodigital/sai-js/blob/main/packages/css-storage-fixture/shapetrees/trees/Role%24.ttl)
+
+
+## Requirements
+
+* Only CG chairs can create a new event
+* Only CG chairs can add/remove the meeting chair
+* Only the meeting chair can promote the attendee to a scribe
+* Only CG participants can add themselves as attendee or absentee
+* Each person can only have one role in a meeting
diff --git a/packages/css-storage-fixture/shapetrees/shapes/Event$.shex b/packages/css-storage-fixture/shapetrees/shapes/Event$.shex
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+PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
+PREFIX shex: <http://www.w3.org/ns/shex>
+PREFIX schema: <https://schema.org/>
+PREFIX solidshapes: <http://localhost:3000/shapetrees/shapes/>
+
+solidshapes:Event {
+  a [ schema:Event ] ;
+  schema:name xsd:string ;
+  schema:startDate xsd:dateTime ;
+  schema:attendee IRI * // shex:reference solidshapes:Role
+}
diff --git a/packages/css-storage-fixture/shapetrees/shapes/Project$.shex b/packages/css-storage-fixture/shapetrees/shapes/Project$.shex
index a3b2892b..22216e06 100644
--- a/packages/css-storage-fixture/shapetrees/shapes/Project$.shex
+++ b/packages/css-storage-fixture/shapetrees/shapes/Project$.shex
@@ -1,4 +1,3 @@
-lines (9 sloc) 305 Bytes
 PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
 PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
 PREFIX solidshapes: <http://localhost:3000/shapetrees/shapes/>
diff --git a/packages/css-storage-fixture/shapetrees/shapes/Role$.shex b/packages/css-storage-fixture/shapetrees/shapes/Role$.shex
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+PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
+PREFIX schema: <https://schema.org/>
+PREFIX solidshapes: <http://localhost:3000/shapetrees/shapes/>
+PREFIX pdo: <http://ontologies.smile.deri.ie/pdo#>
+
+solidshapes:Role {
+  a [ schema:Event ] ;
+  schema:attendee IRI ;
+  schema:roleName [ pdo:Chair pdo:Scribe pdo:Attendee pdo:Absentee]
+}