<s>
In	O
computer	B-General_Concept
science	I-General_Concept
,	O
a	O
left	B-Application
corner	I-Application
parser	I-Application
is	O
a	O
type	O
of	O
chart	B-Application
parser	I-Application
used	O
for	O
parsing	O
context-free	O
grammars	O
.	O
</s>
<s>
The	O
name	O
derives	O
from	O
the	O
use	O
of	O
the	O
left	B-Application
corner	I-Application
of	O
the	O
grammar	O
's	O
production	O
rules	O
.	O
</s>
<s>
An	O
early	O
description	O
of	O
a	O
left	B-Application
corner	I-Application
parser	I-Application
is	O
"	O
A	O
Syntax-Oriented	O
Translator	O
"	O
by	O
Peter	O
Zilahy	O
Ingerman	O
.	O
</s>
