With no explanation, label each line with "location-GPE", "O", "location-bodiesofwater", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
They
are
based
in
the
new
Royal
Marines
Tamar
complex
at
the
northern
end
of
HMNB
Devonport
.
They:O
are:O
based:O
in:O
the:O
new:O
Royal:location-bodiesofwater
Marines:location-bodiesofwater
Tamar:location-bodiesofwater
complex:O
at:O
the:O
northern:O
end:O
of:O
HMNB:O
Devonport:location-GPE
.:O