We have just discovered that the manufacturer is not always the best expert for the category.
It might seem obvious that a producer knows everything about his product. Who can define product attributes better than an expert from the company producing the product?
But there is a trap for the producer. Producer can define all attibutes for his product, he knows the particula sub-category, for example can describe: “infrared gas sensors”, but not “gas sensor”, or “oil power transformers”, but not “transformers”, and “android robot” but no “robot”.
We need super-experts with a broader vision to define general categories and create good taxonomy with the inheritance of atributes.