With no explanation, label each line with "product-airplane", "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
A
few
seconds
later
,
controllers
turned
their
attention
to
the
Eastern
L-1011
,
telling
them
that
Air
Caribbean
flight
309
would
now
be
following
them
for
final
descent
.
A:O
few:O
seconds:O
later:O
,:O
controllers:O
turned:O
their:O
attention:O
to:O
the:O
Eastern:O
L-1011:product-airplane
,:O
telling:O
them:O
that:O
Air:organization-company
Caribbean:organization-company
flight:O
309:O
would:O
now:O
be:O
following:O
them:O
for:O
final:O
descent:O
.:O