All goods sold by the trader must be of acceptable quality, match any description, sample or demonstration model shown to the consumer and be «fit for purpose». (moneysmart.gov.au)
(See video below or follow the link, for the example of Julie, which is an early demonstration model of a chat bot that can help people make small claims). (artificiallawyer.com)
These arrays are both helping us to reduce our carbon footprint and serve as demonstration models for visitors. (massaudubon.org)