Run of [X/Fe] versus [Fe/H] for – clockwise from top left – Mg, Ca, α-elements, Zn, Cu, and Mn predicted with our chemical evolution model assuming that stars above 20 M_⊙ explode as normal type II supernovae (solid curves) or as hypernovae (dotted curves). The red portions of the curves show the phases in which the stripping is active, while the vertical lines mark the end points of the tracks without stripping. The theoretical predictions are compared to data from this work (grey filled squares), Sbordone et al. (2007, cyan diamonds), Carretta et al. (2010b, upside-down triangles), and McWilliam et al. (2013, blue filled circles).