<s>
Sierra	B-Application
's	I-Application
3-D	I-Application
Helicopter	I-Application
Simulator	I-Application
is	O
a	O
1987	O
video	O
game	O
published	O
by	O
Sierra	O
On-Line	O
.	O
</s>
<s>
Sierra	B-Application
's	I-Application
3-D	I-Application
Helicopter	I-Application
Simulator	I-Application
is	O
a	O
combat	O
helicopter	O
simulation	O
in	O
which	O
head-to-head	O
play	O
is	O
available	O
via	O
modem	O
.	O
</s>
<s>
M	O
.	O
Evan	O
Brooks	O
reviewed	O
the	O
game	O
for	O
Computer	O
Gaming	O
World	O
,	O
and	O
stated	O
that	O
"	O
While	O
3-D	B-Application
Helicopter	I-Application
Simulator	I-Application
offers	O
an	O
interesting	O
flight	O
experience	O
and	O
a	O
challenging	O
two	O
player	O
modem	O
game	O
,	O
the	O
game	O
is	O
somewhat	O
predictable	O
as	O
a	O
solitaire	O
combat	O
simulator.	O
"	O
</s>
