With no explanation, label each line with "location-GPE", "O", "person-athlete", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Promotion
was
secured
on
12
April
,
when
third
placed
Tranmere
Rovers
were
beaten
0–1
at
Brentford
,
meaning
that
Luton
could
not
finish
lower
than
second
.
Promotion:O
was:O
secured:O
on:O
12:O
April:O
,:O
when:O
third:O
placed:O
Tranmere:person-athlete
Rovers:person-athlete
were:O
beaten:O
0–1:O
at:O
Brentford:location-GPE
,:O
meaning:O
that:O
Luton:person-athlete
could:O
not:O
finish:O
lower:O
than:O
second:O
.:O