With no explanation, label each line with "location-GPE", "O", "location-island", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
It
was
stationed
at
NAS
North
Island
before
later
moving
to
NAS
Miramar
.
It:O
was:O
stationed:O
at:O
NAS:location-island
North:location-island
Island:location-island
before:O
later:O
moving:O
to:O
NAS:location-GPE
Miramar:location-GPE
.:O