<s>
Lisp	B-Language
Machine	I-Language
Lisp	I-Language
is	O
a	O
programming	O
language	O
,	O
a	O
dialect	O
of	O
the	O
language	O
Lisp	B-Language
.	O
</s>
<s>
A	O
direct	O
descendant	O
of	O
Maclisp	B-Language
,	O
it	O
was	O
initially	O
developed	O
in	O
the	O
mid	O
to	O
late	O
1970s	O
as	O
the	O
system	B-Application
programming	I-Application
language	O
for	O
the	O
Massachusetts	O
Institute	O
of	O
Technology	O
(	O
MIT	O
)	O
Lisp	B-Operating_System
machines	I-Operating_System
.	O
</s>
<s>
Lisp	B-Language
Machine	I-Language
Lisp	I-Language
was	O
also	O
the	O
Lisp	B-Language
dialect	O
with	O
the	O
most	O
influence	O
on	O
the	O
design	O
of	O
Common	B-Language
Lisp	I-Language
.	O
</s>
<s>
Lisp	B-Language
Machine	I-Language
Lisp	I-Language
branched	O
into	O
three	O
dialects	O
.	O
</s>
<s>
Symbolics	O
named	O
their	O
variant	O
ZetaLisp	B-Language
.	O
</s>
<s>
Lisp	B-Operating_System
Machines	I-Operating_System
,	O
Inc	O
.	O
and	O
later	O
Texas	O
Instruments	O
(	O
with	O
the	O
TI	B-Language
Explorer	I-Language
)	O
would	O
share	O
a	O
common	O
code	O
base	O
,	O
but	O
their	O
dialect	O
of	O
Lisp	B-Language
Machine	I-Language
Lisp	I-Language
would	O
differ	O
from	O
the	O
version	O
maintained	O
at	O
the	O
MIT	O
AI	O
Lab	O
by	O
Richard	O
Stallman	O
and	O
others	O
.	O
</s>
<s>
The	O
Lisp	B-Operating_System
Machine	I-Operating_System
Manual	O
describes	O
the	O
Lisp	B-Language
Machine	I-Language
Lisp	I-Language
language	O
in	O
detail	O
.	O
</s>
<s>
Lisp	B-Language
Machine	I-Language
Lisp	I-Language
features	O
include	O
:	O
</s>
