fix: Wrap IRIs in <> in Turtle Notification Templete

Values for `as:object`, `as:target` and `as:origin` predicates in the Turtle PREP-Notification template are IRI's, so they must be wrapped in angle brackets.

Co-authored-by: Sarven Capadisli <[email protected]>

lib/rdf-notification-template.js

@@ -34,10 +34,10 @@ function generateTurtleNotification ({
   let stateLine = ''
 
   if (activity === 'Add') {
-    targetLine = `\n    as:target ${target} ;`
+    targetLine = `\n    as:target <${target}> ;`
   }
   if (activity === 'Remove') {
-    targetLine = `\n    as:origin ${target} ;`
+    targetLine = `\n    as:origin <${target}> ;`
   }
   if (eventID) {
     stateLine = `\n    notify:state "${eventID}" ;`
@@ -48,7 +48,7 @@ function generateTurtleNotification ({
 @prefix xsd: <${CONTEXT_XML_SCHEMA}#> .
 
 <urn:uuid:${uuid.v4()}> a as:${activity} ;
-    as:object ${object} ;${targetLine}${stateLine}
+    as:object <${object}> ;${targetLine}${stateLine}
     as:published "${date}"^^xsd:dateTime .`.replaceAll('\n', '\r\n')
 }