With no explanation, label each line with "product-other", "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
centerpieces
of
ORHC
's
collection
are
the
three
steam
locomotives
:
Southern
Pacific
4449
,
Spokane
,
Portland
&
amp
;
Seattle
700
,
and
Oregon
Railroad
&
amp
;
Navigation
Co.
197
.
The:O
centerpieces:O
of:O
ORHC:organization-company
's:O
collection:O
are:O
the:O
three:O
steam:O
locomotives:O
::O
Southern:product-other
Pacific:product-other
4449:product-other
,:O
Spokane:product-other
,:O
Portland:product-other
&:product-other
amp:product-other
;:product-other
Seattle:product-other
700:product-other
,:O
and:O
Oregon:organization-company
Railroad:organization-company
&:organization-company
amp:organization-company
;:organization-company
Navigation:organization-company
Co.:organization-company
197:organization-company
.:O