LIS full relative clauses do not display a different relativisation sign for human/non-human referents represented by the head noun. In other words, regardless of the human/non-human feature of the head noun, LIS full relative clauses display the same sign pe.
Free relative clauses display wh-signs used for human referents, like the wh-sign who, and wh-signs employed for non-human referents, like the wh-sign what.