Sometimes the main point of a sentence is reiterated as a sort of fragment or ellipsis:
I am afraid .
Really afraid .
Since UCCA doesn't really have a strict notion of 'sentence', should this be treated as one scene or two (with remote edge)?
[ I_A am_F [ afraid_C ... afraid_C ]_S Really_D ]_H
vs
[ I_A am_F afraid_S ]_H [ Really_D afraid_S (I)_A ]_H