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 ":".
Cleveland
Hopkins
is
a
hub
for
United
Airlines
and
offers
both
domestic
and
international
flights
.
Cleveland:O
Hopkins:O
is:O
a:O
hub:O
for:O
United:organization-company
Airlines:organization-company
and:O
offers:O
both:O
domestic:O
and:O
international:O
flights:O
.:O