With no explanation, label each line with "location-GPE", "O", "building-hotel", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Built
from
1926
to
1927
,
the
El
Cortez
was
the
tallest
building
in
San
Diego
when
it
opened
.
Built:O
from:O
1926:O
to:O
1927:O
,:O
the:O
El:building-hotel
Cortez:building-hotel
was:O
the:O
tallest:O
building:O
in:O
San:location-GPE
Diego:location-GPE
when:O
it:O
opened:O
.:O