2. Regarding Article 19 of the Copyright Law in relation to definitions of certain words and Article 19's relationship with the three-step test articulated in the Berne Convention and other treaties (e.g., Article 13 of TRIPS provides: "Members shall confine limitations and exceptions to exclusive rights to certain special cases which do not conflict with a normal exploitation of the work and do not unreasonably prejudice the legitimate interests of the rights holder.") c. Article 19(1)(2) refers to the use of works "for the purpose of illustration in periodicals, in radio- and TV programs, in audio- and video-recordings of training nature." What is meant by "training nature"? Is it the same as "teaching," and if not, what are the differences between the two? What is meant by "in the volume justified for this purpose?" Would this provision apply to training programs created or offered by for-profit or commercial entities? The language used would seem to indicate as such.