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 ":".
Its
fossils
were
found
in
San
Angelo
Formation
,
Texas
.
Its:O
fossils:O
were:O
found:O
in:O
San:location-GPE
Angelo:location-GPE
Formation:location-GPE
,:O
Texas:location-GPE
.:O