With no explanation, label each line with "product-other", "O", "location-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Area
23
was
used
to
launch
Mars
3
,
Mars
4
,
Mars
6
and
Venera
11
,
whilst
Area
24
was
used
by
Mars
2
,
Mars
5
,
Mars
7
,
Venera
9
,
Venera
10
and
Venera
12
.
Area:location-other
23:location-other
was:O
used:O
to:O
launch:O
Mars:product-other
3:product-other
,:O
Mars:product-other
4:product-other
,:O
Mars:product-other
6:product-other
and:O
Venera:product-other
11:product-other
,:O
whilst:O
Area:location-other
24:location-other
was:O
used:O
by:O
Mars:product-other
2:product-other
,:O
Mars:product-other
5:product-other
,:O
Mars:product-other
7:product-other
,:O
Venera:product-other
9:product-other
,:O
Venera:product-other
10:product-other
and:O
Venera:product-other
12:product-other
.:O