With no explanation, label each line with "location-GPE", "O", "organization-religion", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
Greek
Catholics
are
mostly
ethnic
Belarusians
,
with
some
Ukrainians
.
The:O
Greek:organization-religion
Catholics:organization-religion
are:O
mostly:O
ethnic:O
Belarusians:location-GPE
,:O
with:O
some:O
Ukrainians:location-GPE
.:O