TTL file that produces parse error when loaded into Jena 2.6.4

schema.ttl

# Saved by TopBraid on Tue Mar 08 08:20:27 PST 2011
# baseURI: http://example.org/unnamed0

@prefix :        <http://example.org/unnamed0#> .
@prefix owl:     <http://www.w3.org/2002/07/owl#> .
@prefix rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#> .
@prefix univ-bench:  <http://www.lehigh.edu/~zhp2/2004/0401/univ-bench.owl#> .
@prefix xsd:     <http://www.w3.org/2001/XMLSchema#> .

<http://example.org/unnamed0>
      rdf:type owl:Ontology ;
      owl:versionInfo "Created with TopBraid Composer"^^xsd:string .

:Uncle
      rdf:type owl:Class ;
      rdfs:subClassOf :Person ;
      owl:equivalentClass :XXX .

:age  rdf:type owl:DatatypeProperty ;
      rdfs:domain :Person ;
      rdfs:range xsd:integer .

:XXX  rdf:type owl:Class ;
      owl:intersectionOf _:b1 .

:XXY  rdf:type rdf:Statement ;
      rdf:object _:b1 ;
      rdf:predicate owl:intersectionOf ;
      rdf:subject :XXX .

:knows
      rdf:type owl:SymmetricProperty ;
      rdfs:domain :Person ;
      rdfs:label "knows"^^xsd:string ;
      rdfs:range :Person .

:Parent
      rdf:type owl:Class ;
      rdfs:subClassOf :Person .

:Person
      rdf:type owl:Class ;
      rdfs:subClassOf owl:Thing .

:Brother
      rdf:type owl:Class ;
      rdfs:subClassOf :Person .

_:b1 :- (:Brother :Parent) .