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 ":".
It
is
currently
one
of
the
largest
companies
in
Portugal
.
It:O
is:O
currently:O
one:O
of:O
the:O
largest:O
companies:O
in:O
Portugal:location-GPE
.:O