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 ":".
It
was
shot
at
the
Burgtheater
in
Vienna
.
It:O
was:O
shot:O
at:O
the:O
Burgtheater:building-theater
in:O
Vienna:location-GPE
.:O