Mitrovic and Sauerland (2014, 2016) claim that across languages DP-conjunction decomposes into [XP1 MU] [J [XP2 MU]]]. Languages vary wrt. which of the J or MU-particles are pronounced. Our study focuses on Georgian, a language that shows triadic exponence of J and MU. The aim of this work is to test Mitrovic and Sauerland’s (2014, 2016) account by investing the comprehension of conjunctive expressions by Georgian-speaking chidren (28 children; 3;9-5;10, M = 4;9). Our results show that (i) J-MU expressions are more difficult to comprehend than J expressions, (ii) J-MU expressions are more difficult to comprehend than MU expressions. (i) and (ii) go against the account by Mitrovic and Sauerland (2014, 2016) which predicted the opposite pattern. In contrast, (i) is in line with accounts in which the underlying representation of J expressions only involves a J- particle, unlike the underlying representation of J-MU expressions which involve both J and MU-particles (Szabolcsi 2015,Brasoveanu and Szabolcsi 2013, a.o.). (ii) constitutes to our knowledge a challenge for all existing accounts of J-MU expressions (including Szabolcsi 2015, and Brasoveanu and Szabolcsi 2013) which posit a silent J- particle in MU expressions. We propose an alternative account of conjunctive expressions that captures our results.