With no explanation, label each line with "O", "location-bodiesofwater", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Although
the
North
Indian
Ocean
is
the
least
active
of
the
tropical
cyclone
basins
,
the
coast
of
the
Bay
of
Bengal
is
particularly
vulnerable
to
the
effects
of
tropical
cyclones
.
Although:O
the:O
North:location-bodiesofwater
Indian:location-bodiesofwater
Ocean:location-bodiesofwater
is:O
the:O
least:O
active:O
of:O
the:O
tropical:O
cyclone:O
basins:O
,:O
the:O
coast:O
of:O
the:O
Bay:location-bodiesofwater
of:location-bodiesofwater
Bengal:location-bodiesofwater
is:O
particularly:O
vulnerable:O
to:O
the:O
effects:O
of:O
tropical:O
cyclones:O
.:O