related work

AAAI2021/tex/relatedwork.tex

@@ -26,7 +26,7 @@ predicted concepts \rmk{not clear}, from the perspective of \emph{listeners}.
 For example,. 
 However, these metrics are not appropriate, for they only measure
 compositionality of symbolic language in \emph{unilateral} role\rmk{not sure},
-either speakers or listeners. They can not measure the degree of mutual
+either speakers or listeners. They can not measure the degree of \emph{bilateral}
 understanding between speakers and listeners, i.e., the concept-symbol mapping
 consistency between speakers and listeners.