“…In related work, Donaldson and Lloyd (1974) found that 4year-old children treated the sentence, "All the cars are in the garages" as entailing that "All the garages have cars in them" indicating a symmetry requirement (see also Donaldson & McGarrigle, 1974, for a more widely available report of this phenomenon). Since these early studies, many additional studies have investigated this phenomenon, positing a range of semantic, pragmatic, and syntactic explanations, many as recent as the past 2-3 years (for very recent ideas, see Brunetti et al, 2021;Chen, Rosenstein & Hackl, 2020;Denić & Chemla, 2020;Drozd et al, 2019;Ke & Gao, 2020;Kiss, & Zétényi, 2017;Sekerina, & Sauermann, 2017; see Brooks & Parshina, 2019 for review). In the present study, we present evidence in favor of a form of pragmatic account, and show that children's apparent errors arise when experimenters fail to adequately specify a clear "Question Under Discussion" (henceforth QUD; Roberts, 1996Roberts, /2012.…”