"BSM analysis ABCD yields" of "Study of WH production through vector boson scattering and extraction of the relative sign of the W and Z couplings to the Higgs boson in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

Histogram of the background predicted from simulation in regions B, C, D, background estimated from data in region A, and data in regions A, B, C, and D. "Estimated Bkg." is the background estimated from data via ABCD in the signal region, so there is no yield in regions B, C, or D for that column. "SM Bkg." is the background estimated from MC, so it is not plotted in region A to avoid confusion about where the background estimate comes from.