Text: In the Family Therapy Network chat room, a posting on marijuana proved to be the most popular ever, prompting a wide-ranging adult discussion of law, professional responsibility, mental health, addiction, mind expansion, and above all, children.
Entailment: A posting about marijuana led to people discussing the merits of marijuana use and the possible dangers.
Contradiction: Users were hesitant to post on the controversial topic of marijuana, leading to very few people discussing the topic.