Question about patterns

In this document: http://www.w3.org/TR/swbp-n-aryRelations/#RDFReification 
, I find this example as a common pattern:
:Probability_values
      a       owl:Class ;
      owl:equivalentClass
              [ a       owl:Class ;
                owl:oneOf (:HIGH :MEDIUM :LOW)
              ] . 


What is wrong with this: ?
:Probability_values
      a       owl:Class ;
      owl:oneOf (:HIGH :MEDIUM :LOW). 

?

Thanks.



Regards,

Uri Shani, PhD
Research Staff Member
SPRINT(lead), DANSE (lead) Projects

Phone: 972-4-829-6282 | Phone: 972-4-8296282 | Mobile: 972-54-697-6282
E-mail: SHANI@il.ibm.com
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Haifa University, Mount Carmel
Haifa, HA 31905
Israel

Received on Monday, 3 March 2014 22:21:02 UTC