M27 vp move past , vp pass , vp pass by , vp walk past ( all AS ) Actions correspond to expansions of lexemes ( FV = filling status ) : 0=unfilled , 1=filled . ( SV = shared variables ) : the variables np actor ( FV ) , relatum ( FV ) , sentence ( FV ) and information need ( 0=low , 1=high ) are shared by several subagents ; the same applies to their