For example, given an example sentence from TEMPO-TL (e.g., "The cross is seen for the first time then window is first seen in room"), the model does not need to reason about the ordering of "cross seen for the first time" and "window is seen for the first time" because both moments only happen once in the video.
when considering the sentence "The adult hands the little boy a stick then they begin to walk" (from Figure 3), "begin to walk" could refer to multiple video moments.