With no explanation, label each line with "O", "organization-politicalparty", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
In
March
1946
Fink
joined
the
Bayernpartei
(
BP
)
.
In:O
March:O
1946:O
Fink:person-politician
joined:O
the:O
Bayernpartei:organization-politicalparty
(:O
BP:organization-politicalparty
):O
.:O