instruction: Classify each of the following as either a great house or minor house in the series "A Song of Ice and Fire": Targaryen, Stark, Tyrell, Martell, Greyjoy, Baratheon, Lannister, Cerwyn, Karstark, Hornwood, Merryweather, Tarly
response: Great house: Targaryen, Stark, Tyrell, Martell, Greyjoy, Baratheon, Lannister
  Minor house: Cerwyn, Karstark, Hornwood, Merryweather, Tarly