With no explanation, label each line with "other-livingthing", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Though
the
plumage
of
the
spotted
green
pigeon
resembles
that
of
the
Nicobar
pigeon
in
some
respects
,
it
is
also
similar
to
that
of
species
in
the
imperial
pigeon
genus
``
Ducula
``
.
Though:O
the:O
plumage:O
of:O
the:O
spotted:other-livingthing
green:other-livingthing
pigeon:other-livingthing
resembles:O
that:O
of:O
the:O
Nicobar:other-livingthing
pigeon:other-livingthing
in:O
some:O
respects:O
,:O
it:O
is:O
also:O
similar:O
to:O
that:O
of:O
species:O
in:O
the:O
imperial:O
pigeon:O
genus:O
``:O
Ducula:other-livingthing
``:O
.:O