With no explanation, label each line with "O", "other-language", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
earliest
undisputed
direct
examples
of
a
Celtic
language
are
the
Lepontic
inscriptions
beginning
in
the
6th
century
BC
.
The:O
earliest:O
undisputed:O
direct:O
examples:O
of:O
a:O
Celtic:other-language
language:O
are:O
the:O
Lepontic:other-language
inscriptions:O
beginning:O
in:O
the:O
6th:O
century:O
BC:O
.:O