With no explanation, label each line with "location-GPE", "O", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Data
from
the
Chennai
Doppler
weather
radar
is
currently
being
used
by
the
Chennai
airport
.
Data:O
from:O
the:O
Chennai:organization-other
Doppler:organization-other
weather:O
radar:O
is:O
currently:O
being:O
used:O
by:O
the:O
Chennai:location-GPE
airport:O
.:O