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 ":".
Da
Shuhua
marks
the
start
of
the
Dragon
Boat
Festival
(
)
.
Da:O
Shuhua:O
marks:O
the:O
start:O
of:O
the:O
Dragon:O
Boat:O
Festival:O
(:O
):O
.:O