With no explanation, label each line with "location-GPE", "person-scholar", "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
PRR
historian
Dan
Cupper
gives
much
credit
to
a
former
Chief
of
Motive
Power
for
the
initiative
to
preserve
examples
of
their
most
successful
engines
at
their
Northumberland
,
Pennsylvania
roundhouse
.
PRR:organization-company
historian:O
Dan:person-scholar
Cupper:person-scholar
gives:O
much:O
credit:O
to:O
a:O
former:O
Chief:O
of:O
Motive:O
Power:O
for:O
the:O
initiative:O
to:O
preserve:O
examples:O
of:O
their:O
most:O
successful:O
engines:O
at:O
their:O
Northumberland:location-GPE
,:O
Pennsylvania:location-GPE
roundhouse:O
.:O