With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
He
told
that
how
can
an
old
man
be
husband
of
a
young
woman
.
He:O
told:O
that:O
how:O
can:O
an:O
old:O
man:O
be:O
husband:O
of:O
a:O
young:O
woman:O
.:O