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 ":".
In
1815
,
a
gunpowder
mill
was
founded
,
which
was
partly
destroyed
by
explosions
in
the
years
1835
,
1850
and
1865
.
In:O
1815:O
,:O
a:O
gunpowder:O
mill:O
was:O
founded:O
,:O
which:O
was:O
partly:O
destroyed:O
by:O
explosions:O
in:O
the:O
years:O
1835:O
,:O
1850:O
and:O
1865:O
.:O