Speaking as both a knower of French and also a knower of information networks, there are two answers... 1. If your proposed scenario includes bilingual data th

Speaking as both a knower of French and also a knower of information networks, there are two answers... 1. If your proposed scenario includes bilingual data that contains, explicitly or implicitly, translatory relationships between parts of the two languages: the part of the graph that relates inputs to outputs, which is in english, is on the other side of the part of the graph that relates french to english from the part of the graph that takes in french input. So getting from the french input to some output passes through a kind of translation (this may not be a translation between languages but a translation between characteristics, which ends up accomplishing the same thing. see number 2 next). 2. Even if the scenario does _not_ include bilingual texts, French vocabulary is quite proximal to English vocabulary (you can get reasonably far in understanding french purely through strained cognate relationships to an english thesaurus), and the relationship between French questioning and answering grammar is similarly proximal to the relationship between English questioning and answering grammar. So again the same translatory connections can be found even purely by analog, just with some more input data. If you'd said two fundamentally dissimilar languages, like English and Chinese, then that could be different in this second case, but you didn't. This feels kind of like asking why a pocket calculator is able to answer questions about decimal arithmetic when it only knows how to do binary math, when it also happens to encode relationships between binary and decimal numeric representation.