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
the
1970s
major
manoeuvres
with
over
22,000
participants
took
place
.
In:O
the:O
1970s:O
major:O
manoeuvres:O
with:O
over:O
22,000:O
participants:O
took:O
place:O
.:O