With no explanation, label each line with "O", "location-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Reservations
have
been
made
for
three
additional
stations
:
Petas
(
surface
)
,
Viinikkala
(
tunnel
)
and
Ruskeasanta
(
tunnel
)
.
Reservations:O
have:O
been:O
made:O
for:O
three:O
additional:O
stations:O
::O
Petas:location-other
(:O
surface:O
):O
,:O
Viinikkala:location-other
(:O
tunnel:O
):O
and:O
Ruskeasanta:location-other
(:O
tunnel:O
):O
.:O