With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Many
trading
ports
with
links
to
Roman
communities
have
been
identified
in
India
and
Sri
Lanka
along
the
route
used
by
the
Roman
mission
.
Many:O
trading:O
ports:O
with:O
links:O
to:O
Roman:location-GPE
communities:O
have:O
been:O
identified:O
in:O
India:location-GPE
and:O
Sri:location-GPE
Lanka:location-GPE
along:O
the:O
route:O
used:O
by:O
the:O
Roman:location-GPE
mission:O
.:O