With no explanation, label each line with "product-other", "O", "event-sportsevent", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
alloys
were
in
limited
use
for
aircraft
by
1929
,
being
used
in
the
Rolls-Royce
R
engine
that
was
successful
in
the
Schneider
Trophy
seaplane
races
.
The:O
alloys:O
were:O
in:O
limited:O
use:O
for:O
aircraft:O
by:O
1929:O
,:O
being:O
used:O
in:O
the:O
Rolls-Royce:product-other
R:product-other
engine:product-other
that:O
was:O
successful:O
in:O
the:O
Schneider:event-sportsevent
Trophy:event-sportsevent
seaplane:event-sportsevent
races:event-sportsevent
.:O