<s>
SISC	B-Language
is	O
an	O
R5RS	B-Language
Scheme	I-Language
implementation	O
,	O
which	O
includes	O
a	O
full	O
number	O
tower	O
,	O
hygienic	B-Application
macros	I-Application
,	O
proper	B-Language
tail	I-Language
recursion	I-Language
,	O
and	O
first	O
class	O
continuations	O
.	O
</s>
<s>
SISC	B-Language
is	O
short	O
for	O
Second	O
Interpreter	O
of	O
Scheme	O
Code	O
,	O
in	O
reference	O
to	O
its	O
predecessor	O
LISC	O
,	O
the	O
Lightweight	O
Interpreter	O
of	O
Scheme	O
Code	O
.	O
</s>
<s>
SISC	B-Language
is	O
free	B-Application
software	I-Application
,	O
dual-licensed	B-License
under	O
the	O
Mozilla	B-License
Public	I-License
License	I-License
and	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
,	O
Version	O
2	O
.	O
</s>
<s>
SISC	B-Language
depends	O
on	O
Sun	O
Microsystems	O
 '	O
Java	B-Language
programming	I-Language
language	I-Language
platform	O
.	O
</s>
<s>
This	O
runtime	B-Device
environment	I-Device
allows	O
SISC	B-Language
to	O
provide	O
many	O
extensions	O
and	O
libraries	B-Library
such	O
as	O
networking	O
,	O
exception	B-General_Concept
handling	I-General_Concept
,	O
a	O
module	B-Architecture
system	I-Architecture
,	O
and	O
a	O
Java	B-Language
foreign	B-Application
function	I-Application
interface	I-Application
.	O
</s>
<s>
The	O
SISC	B-Language
website	O
claims	O
that	O
it	O
performs	O
faster	O
than	O
any	O
other	O
Scheme	O
interpreter	O
based	O
on	O
the	O
Java	B-Language
Virtual	I-Language
Machine	I-Language
(	O
JVM	B-Language
)	O
.	O
</s>
<s>
Like	O
GNU	B-Application
Guile	I-Application
,	O
this	O
Scheme	O
is	O
suitable	O
for	O
embedding	O
into	O
larger	O
programs	O
,	O
where	O
Guile	O
is	O
designed	O
for	O
inclusion	O
in	O
C	B-Language
programs	I-Language
,	O
SISC	B-Language
is	O
designed	O
for	O
the	O
JVM	B-Language
.	O
</s>
