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 ":".
In
the
1950s
the
lorry
and
bus
model
selection
diversified
heavily
and
diesel
engines
became
more
common
pushing
aside
the
self-produced
petrol
engines
.
In:O
the:O
1950s:O
the:O
lorry:O
and:O
bus:O
model:O
selection:O
diversified:O
heavily:O
and:O
diesel:O
engines:O
became:O
more:O
common:O
pushing:O
aside:O
the:O
self-produced:O
petrol:O
engines:O
.:O