With no explanation, label each line with "building-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Its
establishment
coincides
with
the
period
of
advancing
agricultural
frontier
eastward
,
the
construction
of
the
Itaipu
Dam
and
the
extinction
of
the
waterfalls
in
Saltos
del
Guairá
Its:O
establishment:O
coincides:O
with:O
the:O
period:O
of:O
advancing:O
agricultural:O
frontier:O
eastward:O
,:O
the:O
construction:O
of:O
the:O
Itaipu:building-other
Dam:building-other
and:O
the:O
extinction:O
of:O
the:O
waterfalls:O
in:O
Saltos:O
del:O
Guairá:O