With no explanation, label each line with "location-GPE", "O", "building-hospital", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Subsequently
,
he
went
through
rehabilitation
at
the
Rehabilitation
Institute
of
Chicago
and
Willowbrook
.
Subsequently:O
,:O
he:O
went:O
through:O
rehabilitation:O
at:O
the:O
Rehabilitation:building-hospital
Institute:building-hospital
of:O
Chicago:location-GPE
and:O
Willowbrook:location-GPE
.:O