With no explanation, label each line with "O", "other-chemicalthing", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
In
the
past
,
breeder-reactor
development
focused
on
reactors
with
low
breeding
ratios
,
from
1.01
for
the
Shippingport
Reactor
running
on
thorium
fuel
and
cooled
by
conventional
light
water
to
over
1.2
for
the
Soviet
BN-350
liquid-metal-cooled
reactor
.
In:O
the:O
past:O
,:O
breeder-reactor:O
development:O
focused:O
on:O
reactors:O
with:O
low:O
breeding:O
ratios:O
,:O
from:O
1.01:O
for:O
the:O
Shippingport:O
Reactor:O
running:O
on:O
thorium:other-chemicalthing
fuel:O
and:O
cooled:O
by:O
conventional:O
light:O
water:O
to:O
over:O
1.2:O
for:O
the:O
Soviet:O
BN-350:O
liquid-metal-cooled:O
reactor:O
.:O