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AAAI2021/tex/last.tex

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 In this paper, we are the first work to achieve high compositional
 symbolic language without any deliberately handcrafted induction.
-We make the key observation that the internal \emph{agent capacity} plays a crucial role in the compositionality of symbolic language.
-Together with the theoretical analysis, experimental results lead to a
+We made the key observation that the internal \emph{agent capacity} plays a crucial role in the compositionality of symbolic language.
+Together with the theoretical analysis, experimental results led to a
 counter-intuitive conclusion that \emph{lower agent capacity facilitates the emergence of symbolic language with higher compositionality}.
 Therefore, by only reducing the agent capacity in such a natural environment, we 
-can generate a higher compositional symbolic language with a higher probability.
+generated a higher compositional symbolic language with a higher probability.