With no explanation, label each line with "location-GPE", "O", "event-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
South
Korean
environmental
activists
staged
an
anti-nuclear
rally
on
Monday
,
marking
the
32nd
anniversary
of
the
Three
Mile
Island
nuclear
power
plant
accident
in
the
United
States
.
South:location-GPE
Korean:location-GPE
environmental:O
activists:O
staged:O
an:O
anti-nuclear:O
rally:O
on:O
Monday:O
,:O
marking:O
the:O
32nd:O
anniversary:O
of:O
the:O
Three:event-other
Mile:event-other
Island:event-other
nuclear:event-other
power:event-other
plant:event-other
accident:event-other
in:O
the:O
United:location-GPE
States:location-GPE
.:O