@prefix rdf:  <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix time: <http://www.w3.org/2006/time#>.
@prefix sosa: <http://www.w3.org/ns/sosa/> .
@prefix xsd:  <http://www.w3.org/2001/XMLSchema#> .
@base <http://example.org/data/> .

# The result of an observation of the sunspot number is available a few minutes 
# after the phenomenon time, due to the light travel duration.

<Observation/7536> rdf:type sosa:Observation ;
  sosa:observedProperty  <Sun#sunspotNumber> ;
  sosa:hasSimpleResult 66 ;
  sosa:phenomenonTime [
    rdf:type time:Instant ;
    time:inXSDDateTimeStamp "2017-03-31T11:51:42+00:00"^^xsd:dateTimeStamp ] ;
  sosa:resultTime "2017-03-31T12:00:00+00:00"^^xsd:dateTimeStamp .