<prompt> Bhala okuqhubekayo kwalesi sigaba - Njengomuntu ophambili ekuphathweni ekubhobozeni olwandle, wayephikisana nemizamo yamaDemocratic yokuvimbela lo mkhuba ngemuva kokuchitheka kukawoyela e-Exxon Valdez  <response>: ngo-April 1989, futhi 