With no explanation, label each line with "location-GPE", "person-soldier", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
In
the
meantime
General
Brock
ordered
his
men
and
Indian
Allies
to
retake
the
heights
.
In:O
the:O
meantime:O
General:person-soldier
Brock:person-soldier
ordered:O
his:O
men:O
and:O
Indian:location-GPE
Allies:O
to:O
retake:O
the:O
heights:O
.:O