With no explanation, label each line with "location-GPE", "building-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
ZED-2
(
Zero
Energy
Deuterium
)
is
a
zero-power
nuclear
research
reactor
built
at
the
Chalk
River
Laboratories
in
Ontario
,
Canada
.
ZED-2:building-other
(:O
Zero:O
Energy:O
Deuterium:O
):O
is:O
a:O
zero-power:O
nuclear:O
research:O
reactor:O
built:O
at:O
the:O
Chalk:building-other
River:building-other
Laboratories:building-other
in:O
Ontario:location-GPE
,:O
Canada:location-GPE
.:O