With no explanation, label each line with "person-soldier", "O", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Secretary
of
State
Cordell
Hull
raised
the
possibility
of
MacArthur
's
evacuation
.
Secretary:O
of:O
State:O
Cordell:person-politician
Hull:person-politician
raised:O
the:O
possibility:O
of:O
MacArthur:person-soldier
's:person-soldier
evacuation:O
.:O