Rights-based grievances likewise contribute to intractability. A dispute begins when one person or group makes a claim or demand on another who rejects it. One way to resolve disputes is to rely on some independent standard of perceived legitimacy or fairness. However, if both groups advance their claim as a "right," moderate positions become less likely and it becomes difficult to compromise or reach consensus. Rights talk can foreclose "further communication with those whose points of view differ from our own." This is in part because people treat rights-based arguments as "trump cards" that neutralize all other positions. A tendency towards absolute formulations in rights talk promotes unrealistic expectations and increases the likelihood of conflict. It also ignores social costs and the rights of others, and inhibits dialogue that might lead to the discovery of common ground or compromise. For example, abortion is typically framed as pitting two interests against each other in an all-or-nothing contest. This sort of absolute, win-lose framing is typically not conducive to problem solving .