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 ":".
Oil
drilling
and
logging
activities
took
place
in
the
area
during
the
late
19th
and
early
20th
centuries
.
Oil:O
drilling:O
and:O
logging:O
activities:O
took:O
place:O
in:O
the:O
area:O
during:O
the:O
late:O
19th:O
and:O
early:O
20th:O
centuries:O
.:O