Table 1.

The grammar skeleton used by Reali and Christiansen (2009).

S → {NP VP}

NP → {N (PP)}

PP → {adp NP}

VP → {V (NP) (PP)}

NP → {N PossP}

PossP → {NP poss}

S, sentence; NP, noun phrase; VP, verb phrase; PP, adpositional phrase; PossP, possessive phrase; N, noun; V, verb; adp, adposition; poss, possessive marker. Curly brackets indicate that the order of constituents can be as is, the reverse, or either way with equal probability (i.e., flexible word order). Parentheses indicate an optional constituent.