$\rm \langle Y_{3 \Xi^{-}} \rangle$/$\rm \langle Y_{n {\rm K}^{0}_{\rm{S}}} \rangle$ (left) and $\rm \langle Y_{2 \Omega^{-}} \rangle$/$\rm \langle Y_{n {\rm K}^{0}_{\rm{S}}} \rangle$ (right) as a function of the unbiased charged-particle multiplicity density compared with MC generators: PYTHIA 8 Monash 2013 (dotted line), PYTHIA 8 QCD-CR + Ropes (continuous line) and EPOS LHC (dashed line).