Some countries have had relatively high inflation and relatively high unemployment for long periods of time. Is this consistent with the Phillips curve? Defend your answer

They are consistent with the long-run Phillips curve. In the long run the natural rate of unemployment is determined by factors other than inflation. For example, the natural rate of unemployment will be higher in a country with a higher minimum wage and more generous unemployment compensation. In the long run, inflation depends on the growth rate of the money supply. So, it is possible for a country with a Phillips curve that is farther to the right to also have greater money supply growth and higher inflation.