With no explanation, label each line with "organization-showorganization", "location-GPE", "O", "person-artist/author", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
In
May
2004
,
Pia
joined
Seo
Taiji
in
Vladivostok
,
Russia
and
spread
Korea
rock
music
to
Russian
rock
fans
.
In:O
May:O
2004:O
,:O
Pia:organization-showorganization
joined:O
Seo:person-artist/author
Taiji:person-artist/author
in:O
Vladivostok:location-GPE
,:O
Russia:location-GPE
and:O
spread:O
Korea:location-GPE
rock:O
music:O
to:O
Russian:location-GPE
rock:O
fans:O
.:O