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 ":".
They
were
known
to
reach
speeds
of
up
to
85
mph
(
137
km/h
)
.
They:O
were:O
known:O
to:O
reach:O
speeds:O
of:O
up:O
to:O
85:O
mph:O
(:O
137:O
km/h:O
):O
.:O