With no explanation, label each line with "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
During
November–December
1884
,
Gordon
's
diary
showed
the
stressful
effects
of
the
siege
,
as
he
was
in
a
state
of
mental
exhaustion
,
a
man
on
the
brink
of
madness
.
During:O
November–December:O
1884:O
,:O
Gordon:person-other
's:O
diary:O
showed:O
the:O
stressful:O
effects:O
of:O
the:O
siege:O
,:O
as:O
he:O
was:O
in:O
a:O
state:O
of:O
mental:O
exhaustion:O
,:O
a:O
man:O
on:O
the:O
brink:O
of:O
madness:O
.:O