With no explanation, label each line with "location-GPE", "O", "building-restaurant", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
She
and
her
husband
,
the
prominent
Conservative
Duff
Cooper
,
were
lunching
at
London
's
Savoy
Grill
with
the
Duke
of
Westminster
.
She:O
and:O
her:O
husband:O
,:O
the:O
prominent:O
Conservative:O
Duff:person-politician
Cooper:person-politician
,:O
were:O
lunching:O
at:O
London:location-GPE
's:O
Savoy:building-restaurant
Grill:building-restaurant
with:O
the:O
Duke:O
of:O
Westminster:location-GPE
.:O