Table 5: 

Significant pairwise differences between lexical classes when predicting words’ ages of acquisition in language models and children (adjusted p < 0.05*; p < 0.01**; p < 0.001***). A higher value indicates that a lexical class is acquired later on average. The five possible lexical classes were Noun, Verb, Adjective (Adj), Function Word (Function), and Other.

LSTMGPT-2Children
Adj < Function *** Adj < Function *** Nouns < Adj *** 
Adj < Nouns ** Adj < Other * Nouns < Verbs *** 
Adj < Other ** Verbs < Function *** Nouns < Function *** 
Verbs < Function *** Verbs < Nouns * Function > Adj *** 
Verbs < Nouns ** Verbs < Other ** Function > Verbs *** 
Verbs < Other * Nouns < Function *** Function > Other *** 
  Other < Adj ** 
  Other < Verbs ** 
LSTMGPT-2Children
Adj < Function *** Adj < Function *** Nouns < Adj *** 
Adj < Nouns ** Adj < Other * Nouns < Verbs *** 
Adj < Other ** Verbs < Function *** Nouns < Function *** 
Verbs < Function *** Verbs < Nouns * Function > Adj *** 
Verbs < Nouns ** Verbs < Other ** Function > Verbs *** 
Verbs < Other * Nouns < Function *** Function > Other *** 
  Other < Adj ** 
  Other < Verbs ** 
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