With no explanation, label each line with "product-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Keeping
the
tug
in
space
would
have
allowed
for
a
less
massive
Kliper
,
enabling
launch
on
a
smaller
booster
than
the
original
Kliper
design
.
Keeping:O
the:O
tug:O
in:O
space:O
would:O
have:O
allowed:O
for:O
a:O
less:O
massive:O
Kliper:product-other
,:O
enabling:O
launch:O
on:O
a:O
smaller:O
booster:O
than:O
the:O
original:O
Kliper:product-other
design:O
.:O