@prefix dc: <http://purl.org/dc/elements/1.1/> .
@prefix mo: <http://purl.org/ontology/mo/> . 
@prefix xsd: <http://www.w3.org/2001/XMLSchema#>.
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix nirvana: <http://music.org/nirvana#>.
@prefix ex: <http://example.com/test#>.
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.
@prefix timeline: <http://purl.org/NET/c4dm/timeline.owl#>.
@prefix time: <http://www.w3.org/2006/time#>.
@prefix event: <http://purl.org/NET/c4dm/event.owl#>.

#
# Here, we describe the output of an onset detection
#

nirvana:smellssig mo:signalTime [
        timeline:onTimeLine ex:timeline
        ]. # link to the nirvana example
ex:timeline a timeline:RelativeTimeLine.

# in a small ontology of features (with a restriction on the time object to be used)
ex:OnsetEvent rdfs:subClassOf event:Event.
ex:TonalOnsetEvent rdfs:subClassOf ex:OnsetEvent.

ex:onset1 a ex:TonalOnsetEvent;
	event:time [
		a time:TimeInstant;
		timeline:onTimeLine ex:timeline;
		timeline:atDuration "PT2S";
	].
ex:onset2 a ex:TonalOnsetEvent;
        event:time [
		a time:TimeInstant;
                timeline:onTimeLine ex:timeline;
                timeline:atDuration "PT6S";
        ].
ex:onset3 a ex:TonalOnsetEvent;
        event:time [
		a time:TimeInstant;
                timeline:onTimeLine ex:timeline;
                timeline:atDuration "PT12S";
        ].