<s>
Sketch	B-General_Concept
recognition	I-General_Concept
is	O
the	O
automated	O
recognition	O
of	O
hand-drawn	O
diagrams	O
by	O
a	O
computer	O
.	O
</s>
<s>
Research	O
in	O
sketch	B-General_Concept
recognition	I-General_Concept
lies	O
at	O
the	O
crossroads	O
of	O
artificial	B-Application
intelligence	I-Application
and	O
human	O
–	O
computer	O
interaction	O
.	O
</s>
