With no explanation, label each line with "location-GPE", "O", "person-politician", "event-attack/battle/war/militaryconflict", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Syngman
Rhee
was
the
president
of
South
Korea
at
the
time
of
the
Korean
War
.
Syngman:person-politician
Rhee:person-politician
was:O
the:O
president:O
of:O
South:location-GPE
Korea:location-GPE
at:O
the:O
time:O
of:O
the:O
Korean:event-attack/battle/war/militaryconflict
War:event-attack/battle/war/militaryconflict
.:O