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 ":".
There
he
became
commander
of
the
Spanish
Republican
Navy
yard
at
Cartagena
.
There:O
he:O
became:O
commander:O
of:O
the:O
Spanish:organization-other
Republican:organization-other
Navy:organization-other
yard:organization-other
at:O
Cartagena:location-GPE
.:O