With no explanation, label each line with "O", "location-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
unit
was
initially
based
along
the
North
German
coast
,
protecting
the
northern
flank
of
occupied
Europe
.
The:O
unit:O
was:O
initially:O
based:O
along:O
the:O
North:location-other
German:location-other
coast:location-other
,:O
protecting:O
the:O
northern:O
flank:O
of:O
occupied:O
Europe:location-other
.:O