Premise: Lung cancer . About 10 -- 15 % of cases occur in people who have never smoked . Treatment and long-term outcomes depend on the type of cancer , the stage ( degree of spread ) , and the person 's overall health . Overall , 17.4 % of people in the United States diagnosed with lung cancer survive five years after the diagnosis , while outcomes on average are worse in the developing world .
Hypothesis: Lung cancer occurs in people.
Label: ENTAILMENT