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 ":".
Big
League
Chew
was
introduced
in
May
1980
,
in
the
traditional
pink
color
already
seen
in
established
brands
of
bubble
gum
.
Big:product-other
League:product-other
Chew:product-other
was:O
introduced:O
in:O
May:O
1980:O
,:O
in:O
the:O
traditional:O
pink:O
color:O
already:O
seen:O
in:O
established:O
brands:O
of:O
bubble:O
gum:O
.:O