Your regular reminder that natural language isn't context-free.
Cross-serial dependencies is a Mastodon bot created by Serin Delaunay.
This bot posts Swiss German sentences with English translations. The sentences are based on a formal language described in Shieber (1985)* which show sthat the context-free class of formal languages are not sufficient to describe the syntax of all natural languages.
*Shieber, S. M. (1985). Evidence against the context-freeness of natural language. In Philosophy, Language, and Artificial Intelligence (pp. 79-89). Springer, Dordrecht.
