With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
steam-generating
heavy
water
reactor
was
developed
at
Winfrith
in
Dorset
.
The:O
steam-generating:O
heavy:O
water:O
reactor:O
was:O
developed:O
at:O
Winfrith:location-GPE
in:O
Dorset:location-GPE
.:O