Performance may be either scripted or unscripted, random or carefully orchestrated;
    spontaneous or otherwise carefully planned with or without audience participation.
    The performance can be live or via media; the performer can be present or absent.
    It can be any situation that involves four basic elements: time, space, the performer's
    body, or presence in a medium, and a relationship between performer and audience.
    Performance art can happen anywhere, in any venue or setting and for any length of
    time. The actions of an individual or a group at a particular place and in a particular
    time constitute the work.