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  "limitations": [
    "Confirmatory evaluation of complete frozen training methods, not isolation of pairing or supervision quantity as a causal mechanism.",
    "Accepted CE counts, on-policy questions and evidence distributions differ. Exact attack counts and approximately equal loop time are not FLOP/token matching.",
    "Support-title coverage is a document-presence proxy, not entailment. Some gold-verified clean targets lack full title coverage in attacked context.",
    "1000 held-out HotpotQA questions with per-question distractor-corpus BM25; two fixed held-out attack templates, one fixed target, one model size; not open-web or adaptive-attack robustness.",
    "Three training seeds; intervals across seeds are descriptive. No established clean noninferiority margin or broad security guarantee.",
    "Question/ID disjoint from prior project training and evaluation; upstream pretrained-model contamination cannot be ruled out.",
    "Development results informed primary contrast; confirmation must not be reused for subsequent method tuning without a new held-out set."
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