With no explanation, label each line with "O", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Then-premier
Frank
Hsieh
authorized
Chen
's
resignation
on
September
12
,
and
replaced
him
with
former
vice
premier
Yeh
Chu-lan
.
Then-premier:O
Frank:person-politician
Hsieh:person-politician
authorized:O
Chen:person-politician
's:O
resignation:O
on:O
September:O
12:O
,:O
and:O
replaced:O
him:O
with:O
former:O
vice:O
premier:O
Yeh:person-politician
Chu-lan:person-politician
.:O