With no explanation, label each line with "O", "product-software", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Google
Squared
was
an
information
extraction
and
relationship
extraction
product
from
Google
.
Google:product-software
Squared:product-software
was:O
an:O
information:O
extraction:O
and:O
relationship:O
extraction:O
product:O
from:O
Google:product-software
.:O