With no explanation, label each line with "O", "organization-government/governmentagency", "organization-education", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Since
then
,
Nankai
has
been
listed
among
the
universities
to
receive
priority
development
investments
from
the
Chinese
government
in
the
twenty-first
century
.
Since:O
then:O
,:O
Nankai:organization-education
has:O
been:O
listed:O
among:O
the:O
universities:O
to:O
receive:O
priority:O
development:O
investments:O
from:O
the:O
Chinese:organization-government/governmentagency
government:organization-government/governmentagency
in:O
the:O
twenty-first:O
century:O
.:O