With no explanation, label each line with "organization-showorganization", "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Stone
Sour
is
an
American
rock
band
formed
in
Des
Moines
,
Iowa
,
in
1992
.
Stone:organization-showorganization
Sour:organization-showorganization
is:O
an:O
American:location-GPE
rock:O
band:O
formed:O
in:O
Des:location-GPE
Moines:location-GPE
,:O
Iowa:location-GPE
,:O
in:O
1992:O
.:O