And Wankel engines are certainly not reciprocating engines.

Thus, they are neither reciprocating nor turbine engines.

What are the relevant performance requirements?

From
http://www.flightsimaviation.com/data/FARS/part_121-183.html
planes with 4 or more reciprocating engines must sustain a certain rate of climb at a certain height with 2 engines out.

But for planes with 2 inoperative out of 4 or more turbine engines have different requirements:
http://www.flightsimaviation.com/data/FARS/part_121-193.html

the climb rate must merely be positive, or indeed less.

What precisely are the performance requirements for a plane with 4 or more Wankel engines, with 2 engines out? Seeing how neither reciprocating nor turbine engines apply?