Is this invalid in OWL2 Full? Punned object/annotation property used on the Ontology

punnedAnnotation.ttl

@prefix : <http://example.com/annotatedOntology#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix xml: <http://www.w3.org/XML/1998/namespace> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@base <http://example.com/annotatedOntology#> .

<http://example.com/annotatedOntology#> rdf:type owl:Ontology ;
                                         owl:versionIRI <http://example.com/annotatedOntology/0.1.0> ;
                                         :property1 <http://example.com/other> .
                                         
:property1 rdf:type owl:AnnotationProperty .
:property1 rdf:type owl:ObjectProperty .