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 ":".
,
which
is
the
oldest
continuously
operated
tavern
in
the
city
.
,:O
which:O
is:O
the:O
oldest:O
continuously:O
operated:O
tavern:O
in:O
the:O
city:O
.:O