With no explanation, label each line with "location-GPE", "O", "person-scholar", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Carl
Robert
's
son
Baron
Carl
Gustaf
Emil
Mannerheim
(
1867–1951
)
became
Marshal
and
President
of
Finland
.
Carl:person-scholar
Robert:person-scholar
's:O
son:O
Baron:person-politician
Carl:person-politician
Gustaf:person-politician
Emil:person-politician
Mannerheim:person-politician
(:O
1867–1951:O
):O
became:O
Marshal:O
and:O
President:O
of:O
Finland:location-GPE
.:O