<s>
Ypsilon	B-Language
Scheme	B-Language
is	O
a	O
free	B-Application
software	I-Application
implementation	O
of	O
the	O
R6RS	O
standard	O
of	O
Scheme	B-Language
.	O
</s>
<s>
Its	O
author	O
,	O
Yoshikatsu	O
Fujita	O
,	O
developed	O
the	O
Ypsilon	B-Language
implementation	O
to	O
satisfy	O
the	O
need	O
for	O
a	O
real-time	O
Scheme	B-Language
implementation	O
suitable	O
for	O
computer	O
game	O
development	O
without	O
giving	O
up	O
a	O
garbage	O
collected	O
dynamic	O
interpreter	O
.	O
</s>
