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 ":".
Long-time
Marxists
and
anarchists
pulled
together
against
the
common
enemy
...
Long-time:O
Marxists:O
and:O
anarchists:O
pulled:O
together:O
against:O
the:O
common:O
enemy:O
...:O