Label-swap conflict — semantic label overrides payoff dominance

With canonical payoffs fixed and “Cooperate”/“Defect” attached to opposite strategic roles, the bare configuration chose the cooperation-worded option 0/40 times — it took the payoff-dominated role whenever that role carried the word “Defect.”

What this shows: a displayed label or a label-linked learned prior can override payoff dominance in this registered cell. What it does not show: intrinsic lexical valence. A learned association (“Defect = the dominant action in PD”) is equally plausible, and no structurally equivalent non-PD control retained the same labels. Cross-vendor: Gemini mostly followed payoff dominance instead (0.213 cooperation role, 0.788 the word COOPERATE) — see the cross-vendor dissociation record.