<s>
AgentSpeak	B-Language
is	O
an	O
agent-oriented	B-Language
programming	I-Language
language	O
.	O
</s>
<s>
It	O
is	O
based	O
on	O
logic	B-Language
programming	I-Language
and	O
the	O
belief	O
–	O
desire	O
–	O
intention	O
software	O
model	O
(	O
BDI	O
)	O
architecture	O
for	O
(	O
cognitive	B-Architecture
)	O
autonomous	B-General_Concept
agents	I-General_Concept
.	O
</s>
<s>
The	O
language	O
was	O
originally	O
called	O
AgentSpeak(L )	O
,	O
but	O
became	O
more	O
popular	O
as	O
AgentSpeak	B-Language
,	O
a	O
term	O
that	O
is	O
also	O
used	O
to	O
refer	O
to	O
the	O
variants	O
of	O
the	O
original	O
language	O
.	O
</s>
<s>
In	O
1996	O
,	O
Anand	O
Rao	O
created	O
a	O
logic-based	O
agent	B-General_Concept
programming	O
language	O
based	O
on	O
the	O
BDI	O
architecture	O
and	O
named	O
it	O
AgentSpeak(L )	O
.	O
</s>
<s>
This	O
became	O
a	O
highly	O
cited	O
paper	O
in	O
the	O
multi-agent	O
systems	O
literature	O
.	O
</s>
<s>
In	O
its	O
original	O
conception	O
,	O
AgentSpeak	B-Language
was	O
an	O
abstract	O
agent	B-General_Concept
programming	O
language	O
aimed	O
to	O
help	O
the	O
understanding	O
of	O
the	O
relation	O
between	O
practical	O
implementations	O
of	O
the	O
BDI	O
architecture	O
such	O
as	O
procedural	B-Application
reasoning	I-Application
system	I-Application
(	O
PRS	O
)	O
and	O
the	O
formalisation	O
of	O
the	O
ideas	O
behind	O
the	O
BDI	O
architecture	O
using	O
modal	O
logics	O
.	O
</s>
<s>
Various	O
authors	O
contributed	O
to	O
the	O
further	O
formalisation	O
of	O
the	O
AgentSpeak(L )	O
language	O
.	O
</s>
<s>
In	O
terms	O
of	O
research	O
,	O
there	O
has	O
been	O
work	O
both	O
on	O
extensions	O
of	O
AgentSpeak	B-Language
as	O
well	O
as	O
on	O
formal	O
verification	O
of	O
AgentSpeak	B-Language
programs	O
using	O
model	O
checking	O
.	O
</s>
<s>
The	O
language	O
is	O
also	O
one	O
of	O
the	O
most	O
popular	O
agent-oriented	O
languages	O
because	O
of	O
the	O
development	O
of	O
the	O
Jason	O
platform	O
.	O
</s>
<s>
AgentSpeak(L )	O
is	O
also	O
the	O
most	O
prominent	O
means	O
for	O
developing	O
the	O
solution	O
for	O
the	O
Multi-Agent	O
Programming	O
Contest	O
from	O
the	O
beginning	O
of	O
the	O
competition	O
up	O
to	O
the	O
recent	O
edition	O
.	O
</s>
<s>
Hello	O
World	O
program	O
in	O
AgentSpeak(L )	O
,	O
based	O
on	O
Jason	O
:	O
</s>
