With no explanation, label each line with "O", "organization-politicalparty", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Ordered
to
follow
the
troops
attempting
to
cut
off
the
enemy
retreat
,
McPherson
describes
the
problems
which
developed
among
his
section
of
the
Egyptian
Camel
Transport
Corps
when
the
terms
of
employment
were
changed
and
resulting
unrest
was
dealt
with
.
Ordered:O
to:O
follow:O
the:O
troops:O
attempting:O
to:O
cut:O
off:O
the:O
enemy:O
retreat:O
,:O
McPherson:person-other
describes:O
the:O
problems:O
which:O
developed:O
among:O
his:O
section:O
of:O
the:O
Egyptian:organization-politicalparty
Camel:organization-politicalparty
Transport:organization-politicalparty
Corps:organization-politicalparty
when:O
the:O
terms:O
of:O
employment:O
were:O
changed:O
and:O
resulting:O
unrest:O
was:O
dealt:O
with:O
.:O