With no explanation, label each line with "O", "person-politician", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Wang
Zhaojun
,
of
the
Han
dynasty
,
and
Princess
Wencheng
,
of
the
Tang
dynasty
,
are
among
the
most
famous
heqin
princesses
.
Wang:person-other
Zhaojun:person-other
,:O
of:O
the:O
Han:O
dynasty:O
,:O
and:O
Princess:O
Wencheng:person-politician
,:O
of:O
the:O
Tang:O
dynasty:O
,:O
are:O
among:O
the:O
most:O
famous:O
heqin:O
princesses:O
.:O