 On the other hand, beginning in the 1990s some linguists have argued that GQ theory is unable to account for a range of important semantic phenomena—in English and other languages—related to quantification. Szabolcsi (2010) gives a detailed account of these developments. One issue is that GQ theory appears to have nothing to say about the compositional meaning of complex determiners. For example, how is the meaning of more than five derived from the meanings of its parts? Or consider most, which is often treated as a simple determiner, even though its meaning must somehow come from being a superlative of more.