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 ":".
It
is
16.1
km
(
about
10
mi
)
wide
.
It:O
is:O
16.1:O
km:O
(:O
about:O
10:O
mi:O
):O
wide:O
.:O