With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
Following
its
retirement
it
became
the
first
satellite
to
be
sent
into
a
graveyard
orbit
.
Following:O
its:O
retirement:O
it:O
became:O
the:O
first:O
satellite:O
to:O
be:O
sent:O
into:O
a:O
graveyard:O
orbit:O
.:O