[O/Fe] vs. [Fe/H]: present results for bulge giants compared to: a) thick disk and bulge giants. The lines are the linear regressions to the data with [Fe/H] ≥ −1.0; the upper blue line is the linear regression to the thick disk data and the lower magenta line is the linear regression to the bulge data. by Alves-Brito et al. (2010); b) thick disk and bulge dwarfs by Bensby et al. (2004, 2013). The upper magenta line is the linear regression to the bulge data and the lower blue line is the linear regression to the thick disk data.