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 ":".
The
cornerstone
of
first
building
at
Penn
solely
used
as
a
library
was
laid
in
October
1888
,
construction
was
completed
in
late
1890
,
and
the
building
was
dedicated
in
February
1891
.
The:O
cornerstone:O
of:O
first:O
building:O
at:O
Penn:location-GPE
solely:O
used:O
as:O
a:O
library:O
was:O
laid:O
in:O
October:O
1888:O
,:O
construction:O
was:O
completed:O
in:O
late:O
1890:O
,:O
and:O
the:O
building:O
was:O
dedicated:O
in:O
February:O
1891:O
.:O