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 ":".
By
1982
,
the
company
had
more
than
75
staff
.
By:O
1982:O
,:O
the:O
company:O
had:O
more:O
than:O
75:O
staff:O
.:O