With no explanation, label each line with "location-GPE", "O", "location-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Around
1.5
million
reindeer
carcasses
in
Russian
permafrost
are
at
risk
of
melting
due
to
global
warming
in
the
Arctic
.
Around:O
1.5:O
million:O
reindeer:O
carcasses:O
in:O
Russian:location-GPE
permafrost:O
are:O
at:O
risk:O
of:O
melting:O
due:O
to:O
global:O
warming:O
in:O
the:O
Arctic:location-other
.:O