activity.utilize_material
Indicates various materials which are utilized by this activity, such as consumables, agents, catalysts, or in other roles. material.used_by_activity
Indicates various activities which utilize this material. utilize_material_s: Implements a foreign key to a row in one of the tables projected from entity material depending on the value of the next column (See below). utilize_material_t: Defines the name of the referenced table. Possible values are defined in @material. used_by_activity_s: Implements a foreign key to a row in one of the tables projected from entity activity depending on the value of the next column (See below). used_by_activity_t: Defines the name of the referenced table. Possible values are defined in @activity.