With no explanation, label each line with "O", "location-GPE", "person-director", "event-attack/battle/war/militaryconflict", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other" or "art-painting" preceded by ":".
As
a
German
national
,
Scherchen
was
interned
during
World
War
II
,
following
which
he
served
in
the
British
army
.
As:O
a:O
German:person-director
national:O
,:O
Scherchen:person-other
was:O
interned:O
during:O
World:event-attack/battle/war/militaryconflict
War:event-attack/battle/war/militaryconflict
II:event-attack/battle/war/militaryconflict
,:O
following:O
which:O
he:O
served:O
in:O
the:O
British:location-GPE
army:O
.:O