Text: If, however, we scoped the job to examine in depth recent problems in appropriately selected nuclear plants including among others Three Mile Island, seeking to understand why the safeguards either were not complied with or were not sufficient, then we would have selected the case study method to answer the question.
Entailment: Three Mile Island and the safeguards were not correctly compiled and adhered to.
Contradiction: Three Mile Island was not a nuclear disaster and nothing wrong ever occurred there.