With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
It
has
been
Grade
I
listed
on
the
National
Heritage
List
for
England
since
1952
.
It:O
has:O
been:O
Grade:O
I:O
listed:O
on:O
the:O
National:O
Heritage:O
List:O
for:O
England:location-GPE
since:O
1952:O
.:O