With no explanation, label each line with "location-GPE", "O", "person-artist/author", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Thor
Martin
Johnson
(
June
10
,
1913
–
January
16
,
1975
)
was
an
American
conductor
.
Thor:person-artist/author
Martin:person-artist/author
Johnson:person-artist/author
(:O
June:O
10:O
,:O
1913:O
–:O
January:O
16:O
,:O
1975:O
):O
was:O
an:O
American:location-GPE
conductor:O
.:O