With no explanation, label each line with "location-GPE", "O", "event-other", "person-artist/author", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
The
twin
blocks
were
built
in
1871
to
a
design
by
Bangor
native
architect
George
W.
Orff
,
and
was
built
on
the
site
of
``
The
Main
Street
Fire
``
of
1872
,
which
killed
one
and
injured
8
.
The:O
twin:O
blocks:O
were:O
built:O
in:O
1871:O
to:O
a:O
design:O
by:O
Bangor:location-GPE
native:O
architect:O
George:person-artist/author
W.:person-artist/author
Orff:person-artist/author
,:O
and:O
was:O
built:O
on:O
the:O
site:O
of:O
``:O
The:event-other
Main:event-other
Street:event-other
Fire:event-other
``:O
of:O
1872:O
,:O
which:O
killed:O
one:O
and:O
injured:O
8:O
.:O