Complex sentence: All course descriptions on its internet site were in English, which was supposed to violate French law: in the reasoning of the two associations, these course descriptions constituted an advertisement for this private college and thus fell under the Toubon law.
Split into simpler sentences: All course descriptions on its internet site were in English, which was supposed to violate the French law. In the reasoning of the two associations, these course descriptions constituted an advertisement for this private college and thus fell under the Toubon law.