With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Each
preliminary
round
group
was
hosted
in
a
single
arena
in
Innsbruck
(
Group
A
)
and
Graz
(
Group
B
)
.
Each:O
preliminary:O
round:O
group:O
was:O
hosted:O
in:O
a:O
single:O
arena:O
in:O
Innsbruck:location-GPE
(:O
Group:O
A:O
):O
and:O
Graz:location-GPE
(:O
Group:O
B:O
):O
.:O