With no explanation, label each line with "event-attack/battle/war/militaryconflict", "O", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Lambert
once
again
defected
to
the
Breton
side
and
fought
with
Erispoe
in
the
decisive
Battle
of
Jengland
in
851
,
in
which
Charles
was
defeated
.
Lambert:person-politician
once:O
again:O
defected:O
to:O
the:O
Breton:person-politician
side:O
and:O
fought:O
with:O
Erispoe:person-politician
in:O
the:O
decisive:O
Battle:event-attack/battle/war/militaryconflict
of:event-attack/battle/war/militaryconflict
Jengland:event-attack/battle/war/militaryconflict
in:O
851:O
,:O
in:O
which:O
Charles:person-politician
was:O
defeated:O
.:O