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 ":".
The
resulting
construction
was
called
a
``
bolwerk
''
.
The:O
resulting:O
construction:O
was:O
called:O
a:O
``:O
bolwerk:O
'':O
.:O