With no explanation, label each line with "product-other", "O", "product-software", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Referencer
is
a
GNOME
application
to
organize
documents
or
references
,
and
ultimately
generate
a
BibTeX
bibliography
file
.
Referencer:product-other
is:O
a:O
GNOME:product-software
application:O
to:O
organize:O
documents:O
or:O
references:O
,:O
and:O
ultimately:O
generate:O
a:O
BibTeX:O
bibliography:O
file:O
.:O