With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
It
was
built
in
the
16th
century
and
became
home
to
a
succession
of
Crimean
Khans
.
It:O
was:O
built:O
in:O
the:O
16th:O
century:O
and:O
became:O
home:O
to:O
a:O
succession:O
of:O
Crimean:location-GPE
Khans:location-GPE
.:O