If the present approach is on the right track, it is predicted that unaccusative-based indirect passives are felicitous when they best satisfy both the Qand the I-Principles.
they should be possible if the following two conditions are met: (i) there should be no contextually salient agent in the embedded event; (ii) the individual introduced by the indirect passive morpheme must be adversely affected by the embedded event for which its dative subject argument is responsible.