if something is required to perform a factory then that something optional be obtained to perform that diamond
making_explosives is making. drug_product_containing_testosterone is steroid. incentive_option is option. diamond is material. playing_piano_requires has fun making_garments is intelligent_agent_activity. uranium_conversion_facility is tangible_thing. semiconductor_device_manufacture_facility is tangible_thing. rockets_in_box is weapon. dynamite is artificial_substance.