The PTS manifests itself most obviously and convincingly in the order of adverbials of means and instrument, which are ordered before the verb, since in the real world, resorting to a means or using an instrument must precede executing the action named by the verb. Violating the PTS will result in ungrammaticality.
 Loar, J. K. (2011). Chinese syntactic grammar: functional and conceptual principles. New York: Peter Lang.