With no explanation, label each line with "product-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
WDM-3A
class
is
actually
upgraded
WDM-2
designed
to
produce
more
power
(
3100
hp
instead
of
2600
hp
)
and
increased
reliability
(
roller
bearings
instead
of
conventional
ALCO
bearings
)
.
The:O
WDM-3A:product-other
class:product-other
is:O
actually:O
upgraded:O
WDM-2:product-other
designed:O
to:O
produce:O
more:O
power:O
(:O
3100:O
hp:O
instead:O
of:O
2600:O
hp:O
):O
and:O
increased:O
reliability:O
(:O
roller:O
bearings:O
instead:O
of:O
conventional:O
ALCO:product-other
bearings:product-other
):O
.:O