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 ":".
As
the
West
Kill
reaches
the
similarly-named
hamlet
,
it
descends
under
in
elevation
.
As:O
the:O
West:location-bodiesofwater
Kill:location-bodiesofwater
reaches:O
the:O
similarly-named:O
hamlet:O
,:O
it:O
descends:O
under:O
in:O
elevation:O
.:O