With no explanation, label each line with "O", "location-other", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Construction
of
the
basilica
,
built
over
the
historical
site
of
the
Circus
of
Nero
,
began
during
the
reign
of
Emperor
Constantine
I
.
Construction:O
of:O
the:O
basilica:O
,:O
built:O
over:O
the:O
historical:O
site:O
of:O
the:O
Circus:location-other
of:location-other
Nero:location-other
,:O
began:O
during:O
the:O
reign:O
of:O
Emperor:O
Constantine:person-politician
I:person-politician
.:O