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 ":".
The
hearings
had
a
long-term
impact
when
Richard
Nixon
became
president
,
discarded
containment
,
and
began
a
policy
of
détente
with
China
.
The:O
hearings:O
had:O
a:O
long-term:O
impact:O
when:O
Richard:O
Nixon:O
became:O
president:O
,:O
discarded:O
containment:O
,:O
and:O
began:O
a:O
policy:O
of:O
détente:O
with:O
China:location-GPE
.:O