Before revision: Each local situation determines the context: in England and Wales, there were estimated to be 50,000 squatters in the late 1970s; in Athens, Greece, there are refugee squats ; Germany has occupied social centres .
After revision: Each local situation determines the context: in England and Wales, there were estimated to be 50,000 squatters in the late 1970s; in Athens, Greece, there are refugee squats .