text: <START_QUESTION> there were 4 people that liked to set people's houses on fire. their names were mark, alex, anthony, and kevin. one day the police officers found about the fires but didn't know which person did it. mark, alex, anthony, and kevin's last name was priced. the police officer put up a sign that said this? price. which person set the fire? hint: the sign has a big hint <END_QUESTION>
  <ANSWER> mark <END_ANSWER><|endoftext|>