With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
The
child
,
placed
on
the
ground
between
the
contending
forces
,
changed
into
a
serpent
,
driving
the
Arcadians
away
in
flight
,
before
it
disappeared
into
the
hill
.
The:O
child:O
,:O
placed:O
on:O
the:O
ground:O
between:O
the:O
contending:O
forces:O
,:O
changed:O
into:O
a:O
serpent:O
,:O
driving:O
the:O
Arcadians:O
away:O
in:O
flight:O
,:O
before:O
it:O
disappeared:O
into:O
the:O
hill:O
.:O