With no explanation, label each line with "O", "building-airport", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-hospital" preceded by ":".
It
has
been
owned
and
maintained
by
the
Southend-on-Sea-based
registered
charity
the
Vulcan
Restoration
Trust
since
1993
and
carries
out
occasional
taxi
runs
at
London
Southend
Airport
.
It:O
has:O
been:O
owned:O
and:O
maintained:O
by:O
the:O
Southend-on-Sea-based:O
registered:O
charity:O
the:O
Vulcan:organization-other
Restoration:organization-other
Trust:organization-other
since:O
1993:O
and:O
carries:O
out:O
occasional:O
taxi:O
runs:O
at:O
London:building-airport
Southend:building-airport
Airport:building-airport
.:O