<s>
Deep	B-Device
Space	I-Device
:	I-Device
Operation	I-Device
Copernicus	I-Device
is	O
a	O
1987	O
video	O
game	O
published	O
by	O
Sir-Tech	O
Software	O
.	O
</s>
<s>
Deep	B-Device
Space	I-Device
:	I-Device
Operation	I-Device
Copernicus	I-Device
is	O
a	O
game	O
in	O
which	O
the	O
player	O
must	O
use	O
a	O
Katani	O
class	O
ship	O
to	O
eliminate	O
Andromedan	O
warships	O
that	O
have	O
invaded	O
United	O
Planets	O
territory	O
.	O
</s>
