<s>
In	O
metadata	O
,	O
property	B-General_Concept
equivalence	I-General_Concept
is	O
the	O
statement	O
that	O
two	O
properties	O
have	O
the	O
same	O
property	O
extension	O
or	O
values	O
.	O
</s>
<s>
Property	B-General_Concept
equivalence	I-General_Concept
is	O
one	O
of	O
the	O
three	O
ways	O
that	O
a	O
metadata	O
registry	O
can	O
store	O
equivalence	O
mappings	O
to	O
other	O
metadata	O
registries	O
.	O
</s>
<s>
Note	O
that	O
property	B-General_Concept
equivalence	I-General_Concept
is	O
not	O
the	O
same	O
as	O
property	O
equality	O
.	O
</s>
<s>
Property	O
equality	O
should	O
be	O
expressed	O
with	O
the	O
owl:sameAs	O
construct	O
.	O
</s>
<s>
As	O
this	O
requires	O
that	O
properties	O
are	O
treated	O
as	O
individuals	O
,	O
such	O
axioms	O
are	O
only	O
allowed	O
in	O
OWL	B-Language
Full	O
.	O
</s>
