With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
Meanwhile
,
his
seven
children
were
in
the
custody
of
family
members
after
the
death
of
his
wife
in
1881
.
Meanwhile:O
,:O
his:O
seven:O
children:O
were:O
in:O
the:O
custody:O
of:O
family:O
members:O
after:O
the:O
death:O
of:O
his:O
wife:O
in:O
1881:O
.:O