With no explanation, label each line with "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
At
that
time
,
the
company
estimated
450
customers
,
including
Jet.com
.
At:O
that:O
time:O
,:O
the:O
company:O
estimated:O
450:O
customers:O
,:O
including:O
Jet.com:organization-company
.:O