With no explanation, label each line with "O", "person-scholar", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Dr.
Csoka
is
a
prominent
proponent
of
life
extension
,
cryonics
,
and
transhumanism
,
and
has
been
identified
as
one
of
the
top
twenty-three
socially
connected
professors
on
Twitter
.
Dr.:person-scholar
Csoka:person-scholar
is:O
a:O
prominent:O
proponent:O
of:O
life:O
extension:O
,:O
cryonics:O
,:O
and:O
transhumanism:O
,:O
and:O
has:O
been:O
identified:O
as:O
one:O
of:O
the:O
top:O
twenty-three:O
socially:O
connected:O
professors:O
on:O
Twitter:O
.:O