<s>
Corridors	B-Application
of	I-Application
Genon	I-Application
is	O
a	O
first-person	O
maze	B-Application
video	I-Application
game	I-Application
for	O
the	O
ZX	B-Operating_System
Spectrum	I-Operating_System
developed	O
by	O
New	O
Generation	O
Software	O
and	O
released	O
in	O
1983	O
.	O
</s>
<s>
Sinclair	O
User	O
:	O
"	O
Corridors	B-Application
of	I-Application
Genon	I-Application
is	O
an	O
excellent	O
3D	O
game	O
from	O
a	O
master	O
of	O
3D	O
techniques	O
.	O
</s>
