Belief/false belief (cognitive science) ; Überzeugung (Kognitionsforschung) ; Propositional attitude ; Spracherwerb und neurologische Entwicklung; Language acquisition and neurological development; Sprache und Denken (Ontogenese) ; Language and thought (ontogenesis) ; Cognitive development; Language acquisition and cognitive development ; Kindersprache (Sprachverständnis) ; Children's comprehension of language; Language comprehension in children ; Satzkomplement; Objektsatz; Konstituentensatz; Constituent clause; Complement clause