premise: A 24-hour general strike on Wednesday paralysed the Greek public and private sectors and severely restricted air, sea and rail travel across the country, as the country's two biggest trade unions took to the streets to protest against government fiscal policy.
  All aircraft were to be grounded for four hours on Wednesday from noon (1000 GMT) because of action by air traffic controllers.
  Flight disruptions were to continue until Thursday, with national carrier Olympic Airlines expecting to cancel 35 flights to foreign destinations and 75 internal flights over the next two days.
  Olympic said it would operate one flight a day to each domestic destination and one flight a day to each foreign destination.
  Another Greek carrier, Aegean Airlines, said it will cancel a flight to Cyprus and seven domestic flights and will change the timings of 27 of its departures on Wednesday.
   What types of travel disruptions were experienced during the strike?
hypothesis: restricted air, sea and rail travel