1. Introduction

A conjunct phrase is a sequence, notated [a & b], where a and b stand for the two terms of a conjoined sequence and & stands for the conjunction marker. The lexical category of a conjoined phrase is identical to that of its members, a and b. Moreover the grammatical function of [a & b] is the same as the grammatical function of a and of b (Haspelmath 2004; Godard 2005). The sequence [a & b] is hierarchically organized: [a & b] should be rewritten as [a [& b]], because [& b] f…