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 ":".
Joining
the
firm
as
partner
in
1873
,
he
became
one
of
the
three
vice
presidents
.
Joining:O
the:O
firm:O
as:O
partner:O
in:O
1873:O
,:O
he:O
became:O
one:O
of:O
the:O
three:O
vice:O
presidents:O
.:O