With no explanation, label each line with "location-GPE", "O", "organization-government/governmentagency", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
In
February
2009
,
Obama
appointed
him
chair
of
a
White
House
review
committee
formed
to
overhaul
U.S
.
policy
on
Afghanistan
and
Pakistan
.
In:O
February:O
2009:O
,:O
Obama:person-politician
appointed:O
him:O
chair:O
of:O
a:O
White:organization-government/governmentagency
House:organization-government/governmentagency
review:O
committee:O
formed:O
to:O
overhaul:O
U.S:location-GPE
.:location-GPE
policy:O
on:O
Afghanistan:location-GPE
and:O
Pakistan:location-GPE
.:O