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 ":".
While
the
more
powerful
engine
made
little
difference
in
maximum
speed
,
especially
at
low
altitude
,
it
did
improve
altitude
performance
,
with
an
extra
10
mph
at
5,000
ft
.
While:O
the:O
more:O
powerful:O
engine:O
made:O
little:O
difference:O
in:O
maximum:O
speed:O
,:O
especially:O
at:O
low:O
altitude:O
,:O
it:O
did:O
improve:O
altitude:O
performance:O
,:O
with:O
an:O
extra:O
10:O
mph:O
at:O
5,000:O
ft:O
.:O