With no explanation, label each line with "location-GPE", "O", "event-protest", "person-soldier", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
He
was
then
a
Portuguese
army
major
and
one
of
the
faithful
of
António
de
Spínola
,
who
was
one
of
the
important
people
of
the
Carnation
Revolution
which
occurred
on
25
April
1974
.
He:O
was:O
then:O
a:O
Portuguese:location-GPE
army:O
major:O
and:O
one:O
of:O
the:O
faithful:O
of:O
António:person-soldier
de:person-soldier
Spínola:person-soldier
,:O
who:O
was:O
one:O
of:O
the:O
important:O
people:O
of:O
the:O
Carnation:event-protest
Revolution:event-protest
which:O
occurred:O
on:O
25:O
April:O
1974:O
.:O