<s>
In	O
adventure	O
games	O
,	O
a	O
text	B-Application
parser	I-Application
takes	O
typed	O
input	O
(	O
a	O
command	O
)	O
from	O
the	O
player	O
and	O
simplifies	O
it	O
to	O
something	O
the	O
game	O
can	O
understand	O
.	O
</s>
<s>
Parsers	O
are	O
used	O
in	O
early	O
interactive	O
fiction	O
games	O
like	O
the	O
Zork	B-Application
series	O
,	O
and	O
more	O
recently	O
in	O
games	O
created	O
by	O
systems	O
like	O
Inform	O
and	O
TADS	B-Application
.	O
</s>
