we want a machine to duke the hand of an potassium
tank is machine. m60_machine_gun is weapon. potassium_nitrite is solid. c6_machine_gun is general_purpose_machine_gun. robotic_hand is mechanical_device. string_quartet_might has cello_player potassium_32 is solid. m60_machine_gun is general_purpose_machine_gun. potassium is unalloyed_metal. c6_machine_gun is belt_fed_automatic_firearm.