With no explanation, label each line with "location-GPE", "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
During
the
Japanese
occupation
of
Hong
Kong
,
civil
disorder
among
the
people
broke
out
in
the
streets
and
Lam
stepped
in
to
maintain
peace
.
During:O
the:O
Japanese:location-GPE
occupation:O
of:O
Hong:location-GPE
Kong:location-GPE
,:O
civil:O
disorder:O
among:O
the:O
people:O
broke:O
out:O
in:O
the:O
streets:O
and:O
Lam:person-other
stepped:O
in:O
to:O
maintain:O
peace:O
.:O