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 ":".
The
following
season
they
reached
the
fifth
round
(
last
16
stage
)
.
The:O
following:O
season:O
they:O
reached:O
the:O
fifth:O
round:O
(:O
last:O
16:O
stage:O
):O
.:O