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 ":".
Cobalt
HSS
core
drills
are
used
to
drill
materials
like
Structural
Steel
,
Stainless
Steel
,
Cast
iron
,
etc
.
Cobalt:product-other
HSS:product-other
core:O
drills:O
are:O
used:O
to:O
drill:O
materials:O
like:O
Structural:product-other
Steel:product-other
,:O
Stainless:product-other
Steel:product-other
,:O
Cast:product-other
iron:product-other
,:O
etc:O
.:O