He now needs a ventilator to force air in and out of his lungs.
(He; needs; a ventilator; to force air in and out of his lungs; T:now) Context(He needs,List([0, 12))):(He; needs a ventilator to force; air; in and out of his lungs)
He needs,List([0, 12))
He He
needs needs a ventilator to force
a ventilator to force air in and out of his lungs T:now
air in and out of his lungs