With no explanation, label each line with "location-GPE", "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
This
city
is
a
hub
of
HINDALCO
,
an
Indian
aluminium
and
copper
manufacturing
company
.
This:O
city:O
is:O
a:O
hub:O
of:O
HINDALCO:organization-company
,:O
an:O
Indian:location-GPE
aluminium:O
and:O
copper:O
manufacturing:O
company:O
.:O