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 ":".
Gale
Sears
is
an
American
author
specializing
in
historical
fiction
.
Gale:person-artist/author
Sears:person-artist/author
is:O
an:O
American:location-GPE
author:O
specializing:O
in:O
historical:O
fiction:O
.:O