With no explanation, label each line with "O", "location-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Today
this
is
only
used
for
freight
to
the
Port
of
Buenos
Aires
,
however
it
was
briefly
used
for
passenger
services
in
the
1990s
.
Today:O
this:O
is:O
only:O
used:O
for:O
freight:O
to:O
the:O
Port:location-other
of:location-other
Buenos:location-other
Aires:location-other
,:location-other
however:O
it:O
was:O
briefly:O
used:O
for:O
passenger:O
services:O
in:O
the:O
1990s:O
.:O