19 This is the factuality value available when the parser reaches event e 1 (be aware), which is consequently characterized as PS− according to source s 0 , the text author.
the factuality profile of event e 1 , p be aware e 1 , is the set of factuality values relative to the relevant sources at its level: p be aware e 1 ={ PS−,s 0 } (Step 4).