$p_{\rm T}$-differential particle ratios as a function of $R_{\rm T}$. The top (bottom) row shows the ${\rm K}/\pi$ (${\rm p}/\pi$) ratio. The results in the toward, away, and transverse regions are shown from left to right. Statistical and systematic uncertainties are represented with error bars and boxes, respectively. The inclusive minimum-bias particle ratios in pp collisions at the same centre-of-mass energy are overlaid.