How to say "have a contest of strength between N1 and N2" in Ainu?

This page explains the expression of 'have a contest of strength between N1 and N2' in Ainu. How do you say 'have a contest of strength between N1 and N2' in the Ainu language? What is 'have a contest of strength between N1 and N2' in Ainu? Similar expressions and alternative phrases are also introduced.