<s>
Automatic	B-General_Concept
layout	I-General_Concept
is	O
an	O
option	O
in	O
graph	O
drawing	O
toolkits	O
that	O
allow	O
to	O
lay	O
out	O
the	O
Graph	O
according	O
to	O
specific	O
rules	O
,	O
such	O
as	O
:	O
</s>
