###Answer the question from the input provided. Please answer from input only.

###Input: One of the oldest depictions of civil disobedience is in Sophocles' play Antigone, in which Antigone, one of the daughters of former King of Thebes, Oedipus, defies Creon, the current King of Thebes, who is trying to stop her from giving her brother Polynices a proper burial. She gives a stirring speech in which she tells him that she must obey her conscience rather than human law. She is not at all afraid of the death he threatens her with (and eventually carries out), but she is afraid of how her conscience will smite her if she does not do this.

Following the Peterloo massacre of 1819, poet Percy Shelley wrote the political poem The Mask of Anarchy later that year, that begins with the images of what he thought to be the unjust forms of authority of his time—and then imagines the stirrings of a new form of social action. It is perhaps the first modern[vague] statement of the principle of nonviolent protest. A version was taken up by the author Henry David Thoreau in his essay Civil Disobedience, and later by Gandhi in his doctrine of Satyagraha. Gandhi's Satyagraha was partially influenced and inspired by Shelley's nonviolence in protest and political action. In particular, it is known that Gandhi would often quote Shelley's Masque of Anarchy to vast audiences during the campaign for a free India.

It has been argued that the term "civil disobedience" has always suffered from ambiguity and in modern times, become utterly debased. Marshall Cohen notes, "It has been used to describe everything from bringing a test-case in the federal courts to taking aim at a federal official. Indeed, for Vice President Agnew it has become a code-word describing the activities of muggers, arsonists, draft evaders, campaign hecklers, campus militants, anti-war demonstrators, juvenile delinquents and political assassins."

LeGrande writes that "the formulation of a single all-encompassing definition of the term is extremely difficult, if not impossible. In reviewing the voluminous literature on the subject, the student of civil disobedience rapidly finds himself surrounded by a maze of semantical problems and grammatical niceties. Like Alice in Wonderland, he often finds that specific terminology has no more (or no less) meaning than the individual orator intends it to have." He encourages a distinction between lawful protest demonstration, nonviolent civil disobedience, and violent civil disobedience.

Civil disobedience is usually defined as pertaining to a citizen's relation to the state and its laws, as distinguished from a constitutional impasse in which two public agencies, especially two equally sovereign branches of government, conflict. For instance, if the head of government of a country were to refuse to enforce a decision of that country's highest court, it would not be civil disobedience, since the head of government would be acting in her or his capacity as public official rather than private citizen.



###Question: If the head of government refuses to enforce a decision of the highest court what terminology could be used?

###Answer: {'answer':'constitutional impasse'}