<s>
Chess	B-General_Concept
Query	I-General_Concept
Language	I-General_Concept
(	O
CQL	O
)	O
is	O
a	O
structured	O
query	B-Language
language	I-Language
which	O
is	O
designed	O
to	O
allow	O
chess	O
players	O
and	O
researchers	O
to	O
search	O
for	O
games	O
,	O
positions	O
,	O
problems	O
,	O
and	O
studies	O
in	O
a	O
quick	O
and	O
relatively	O
easy	O
manner	O
.	O
</s>
