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 ":".
The
locomotive
and
baggage
car
left
the
track
when
it
struck
the
truck
,
which
was
hauling
electrical
equipment
.
The:O
locomotive:O
and:O
baggage:O
car:O
left:O
the:O
track:O
when:O
it:O
struck:O
the:O
truck:O
,:O
which:O
was:O
hauling:O
electrical:O
equipment:O
.:O