VPt(0)oSSTake for example the situation elaborated in the paragraph SS; It is like the situation SS [One could read this as VPt[0]oSS, taking the comparer to be lexically determinate: "one".]
VPtoNmay be properly compared to, be comparable to the case of (typically but not always with understood subject)
VPtoNPab{S}may be properly compared with S
VPtoNab{VP}譬如為山"It is like building up a mound": It is like V-ingCH