<s>
Simple	B-Protocol
Learning	I-Protocol
Design	I-Protocol
2.0	I-Protocol
(	O
SLD	O
2.0	O
)	O
is	O
a	O
learning	O
design	O
specification	O
proposed	O
by	O
Durand	O
and	O
Downes	O
from	O
the	O
National	O
Research	O
Council	O
of	O
Canada	O
in	O
2009	O
.	O
</s>
<s>
To	O
implement	O
the	O
specification	O
an	O
XML	B-Language
schema	I-Language
is	O
available	O
online	O
(	O
)	O
and	O
explained	O
in	O
the	O
.	O
</s>
