With no explanation, label each line with "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
PRR
however
took
pride
in
their
engineering
and
mechanical
legacy
.
The:O
PRR:organization-company
however:O
took:O
pride:O
in:O
their:O
engineering:O
and:O
mechanical:O
legacy:O
.:O