With no explanation, label each line with "O", "event-attack/battle/war/militaryconflict", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Both
were
seriously
injured
after
the
Battle
of
Alcácer
Quibir
on
4
August
1578
and
never
returned
to
Brazil
.
Both:O
were:O
seriously:O
injured:O
after:O
the:O
Battle:event-attack/battle/war/militaryconflict
of:event-attack/battle/war/militaryconflict
Alcácer:event-attack/battle/war/militaryconflict
Quibir:event-attack/battle/war/militaryconflict
on:O
4:O
August:O
1578:O
and:O
never:O
returned:O
to:O
Brazil:O
.:O