With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
It
is
believed
that
Snapper
Rocks
were
named
by
W.L
.
It:O
is:O
believed:O
that:O
Snapper:location-GPE
Rocks:location-GPE
were:O
named:O
by:O
W.L:O
.:O