<s>
A	O
privacy	B-Application
platform	I-Application
is	O
a	O
piece	O
of	O
software	O
or	O
a	O
system	O
that	O
is	O
designed	O
to	O
retain	O
the	O
privacy	O
of	O
its	O
users	O
and	O
operators	O
.	O
</s>
