Text: For example, driving while intoxicated overlaps with alcoholism, but it constitutes an important issue in its own right because surveys consistently show that a substantial number of individuals who do not meet diagnostic criteria for alcohol abuse or dependence admit to having driven an automobile while intoxicated.
Entailment: There are some people who are not alcoholics, who have driven while drunk.
Contradiction: Anyone who drives under the influence of alcohol is an alcoholic.