<s>
.ad	B-General_Concept
is	O
the	O
Internet	B-Application
country	I-Application
code	I-Application
top-level	O
domain	O
(	O
ccTLD	B-Application
)	O
for	O
Andorra	O
.	O
</s>
<s>
Because	O
.ad	B-General_Concept
is	O
also	O
an	O
abbreviation	O
for	O
the	O
word	O
advertisement	O
or	O
advert	O
,	O
.ad	B-General_Concept
has	O
also	O
been	O
used	O
in	O
an	O
unconventional	O
manner	O
as	O
a	O
domain	B-Application
hack	I-Application
by	O
some	O
advertising	O
media	O
.	O
</s>
