With no explanation, label each line with "O", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
This
was
evidenced
in
the
succession
of
then-prime
minister
Vladimir
Putin
to
the
presidential
powers
and
duties
after
the
resignation
of
Boris
Yeltsin
,
due
to
illness
,
on
December
31
,
1999
.
This:O
was:O
evidenced:O
in:O
the:O
succession:O
of:O
then-prime:O
minister:O
Vladimir:person-politician
Putin:person-politician
to:O
the:O
presidential:O
powers:O
and:O
duties:O
after:O
the:O
resignation:O
of:O
Boris:person-politician
Yeltsin:person-politician
,:O
due:O
to:O
illness:O
,:O
on:O
December:O
31:O
,:O
1999:O
.:O