With no explanation, label each line with "product-airplane", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
From
1952
to
1961
the
strength
tests
of
jet
aircraft
:
Lim-1
(
licence-built
MiG
15
)
,
Lim-2
(
MiG-15bis
)
,
Lim-5
(
MiG-17
)
,
and
TS-11
``
Iskra
''
as
well
as
piston
aircraft
:
CSS-13
,
Junak-3
,
Li-2
,
TS-8
Bies
,
Jak-12M
,
Jak-12A
,
PZL
M-2
,
also
elements
of
the
helicopter
BŻ-4
Żuk
.
From:O
1952:O
to:O
1961:O
the:O
strength:O
tests:O
of:O
jet:O
aircraft:O
::O
Lim-1:product-airplane
(:product-airplane
licence-built:product-airplane
MiG:product-airplane
15:product-airplane
):product-airplane
,:O
Lim-2:product-airplane
(:product-airplane
MiG-15bis:product-airplane
):product-airplane
,:O
Lim-5:product-airplane
(:product-airplane
MiG-17:product-airplane
):product-airplane
,:O
and:O
TS-11:product-airplane
``:product-airplane
Iskra:product-airplane
'':product-airplane
as:O
well:O
as:O
piston:O
aircraft:O
::O
CSS-13:product-airplane
,:O
Junak-3:O
,:O
Li-2:product-airplane
,:O
TS-8:product-airplane
Bies:product-airplane
,:O
Jak-12M:product-airplane
,:O
Jak-12A:product-airplane
,:O
PZL:product-airplane
M-2:product-airplane
,:O
also:O
elements:O
of:O
the:O
helicopter:O
BŻ-4:product-airplane
Żuk:product-airplane
.:O