With no explanation, label each line with "O", "product-ship", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
Deep
Submergence
Rescue
Vehicle
(
DSRV
)
is
designed
to
rescue
24
people
at
a
time
at
depths
of
up
to
.
The:O
Deep:product-ship
Submergence:product-ship
Rescue:product-ship
Vehicle:product-ship
(:O
DSRV:product-ship
):O
is:O
designed:O
to:O
rescue:O
24:O
people:O
at:O
a:O
time:O
at:O
depths:O
of:O
up:O
to:O
.:O