With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
Beginning
in
the
mid-18th
century
,
the
post
lost
its
former
importance
,
and
in
1836
,
it
was
abolished
.
Beginning:O
in:O
the:O
mid-18th:O
century:O
,:O
the:O
post:O
lost:O
its:O
former:O
importance:O
,:O
and:O
in:O
1836:O
,:O
it:O
was:O
abolished:O
.:O