With no explanation, label each line with "location-GPE", "O", "building-other", "person-artist/author", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Annie
moved
to
London
where
she
kept
a
flat
in
Portman
Square
.
Annie:person-artist/author
moved:O
to:O
London:location-GPE
where:O
she:O
kept:O
a:O
flat:O
in:O
Portman:building-other
Square:building-other
.:O