<s>
Saucer	B-Application
Attack	I-Application
!	I-Application
</s>
<s>
is	O
a	O
shoot	O
'	O
em	O
up	O
written	O
by	O
James	O
D	O
.	O
Sachs	O
for	O
the	O
Commodore	O
64	O
and	O
published	O
by	O
Sachs	O
Enterprises	O
in	O
1984	B-Application
.	O
</s>
<s>
The	O
goal	O
is	O
to	O
protect	O
Washington	O
,	O
D.C.	O
from	O
invading	O
flying	B-Language
saucers	I-Language
.	O
</s>
<s>
Flying	B-Language
saucers	I-Language
descend	O
from	O
the	O
top	O
of	O
the	O
screen	O
.	O
</s>
