With no explanation, label each line with "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
They
owned
the
castle
until
1714
,
when
it
passed
to
the
Graffenried
family
.
They:O
owned:O
the:O
castle:O
until:O
1714:O
,:O
when:O
it:O
passed:O
to:O
the:O
Graffenried:person-other
family:O
.:O