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 ":".
The
headstock
(
1
)
contains
the
metal
machine
heads
(
1.1
)
,
which
use
a
worm
gear
for
tuning
.
The:O
headstock:O
(:O
1:O
):O
contains:O
the:O
metal:O
machine:O
heads:O
(:O
1.1:O
):O
,:O
which:O
use:O
a:O
worm:product-other
gear:product-other
for:O
tuning:O
.:O