With no explanation, label each line with "O", "location-island", "location-bodiesofwater", "location-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Grjótagjá
is
a
small
lava
cave
near
lake
Mývatn
in
Iceland
.
Grjótagjá:location-other
is:O
a:O
small:O
lava:O
cave:O
near:O
lake:location-bodiesofwater
Mývatn:location-bodiesofwater
in:O
Iceland:location-island
.:O