With no explanation, label each line with "building-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Originally
the
station
was
to
be
named
either
``
Watford
Hospital
``
or
``
Watford
General
Hospital
``
.
Originally:O
the:O
station:O
was:O
to:O
be:O
named:O
either:O
``:O
Watford:building-other
Hospital:building-other
``:O
or:O
``:O
Watford:building-other
General:building-other
Hospital:building-other
``:O
.:O