With no explanation, label each line with "O", "other-biologything", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
N-terminal
``
head
domain
''
binds
DNA
.
The:O
N-terminal:O
``:O
head:O
domain:O
'':O
binds:O
DNA:other-biologything
.:O