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 ":".
He
then
tells
Clive
there
is
only
one
who
can
help
stop
the
rats
:
Isabella
's
ex-boyfriend
,
the
Pied
Piper
.
He:O
then:O
tells:O
Clive:person-other
there:O
is:O
only:O
one:O
who:O
can:O
help:O
stop:O
the:O
rats:O
::O
Isabella:person-other
's:O
ex-boyfriend:O
,:O
the:O
Pied:person-other
Piper:person-other
.:O