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 ":".
Alen
recalls
having
one
of
his
costume
's
eyes
removed
by
a
youngster
on
his
first
night
out
.
Alen:person-other
recalls:O
having:O
one:O
of:O
his:O
costume:O
's:O
eyes:O
removed:O
by:O
a:O
youngster:O
on:O
his:O
first:O
night:O
out:O
.:O