Ratio of $\Ls$, K$^{*0}$, ${\rm \Xi^{*0}}$ and ${\rm \phi}$ to charged $\pi$ (left) and K$^-$ (right) in p--Pb collisions at $\sn$ $\mathrm{=}$ 5.02 TeV as a function of the average charged-particle density $\dnchdeta$ measured at midrapidity . Statistical uncertainties (bars) are shown together with total (hollow boxes) and multiplicity-uncorrelated (shaded boxes) systematic uncertainties. The EPOS3 model predictions  with statistical uncertainties are shown as horizontal bars (pp collisions at $\s$ $\mathrm{=}$ 7 TeV) and shaded bands (p--Pb collisions at $\sn$ $\mathrm{=}$ 5.02 TeV).