With no explanation, label each line with "location-GPE", "O", "building-theater", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
A
Singapore
theatre
company
,
PANGDEMONiUM
!
,
opened
the
play
in
Singapore
at
Drama
Centre
from
20
September
to
7
October
2012
.
A:O
Singapore:location-GPE
theatre:O
company:O
,:O
PANGDEMONiUM:building-theater
!:O
,:O
opened:O
the:O
play:O
in:O
Singapore:location-GPE
at:O
Drama:building-theater
Centre:building-theater
from:O
20:O
September:O
to:O
7:O
October:O
2012:O
.:O