With no explanation, label each line with "person-athlete", "organization-government/governmentagency", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Lorentz
continued
to
play
until
1978
when
he
retired
from
NHL
duty
.
Lorentz:person-athlete
continued:O
to:O
play:O
until:O
1978:O
when:O
he:O
retired:O
from:O
NHL:organization-government/governmentagency
duty:O
.:O