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    "travelSemantics": "V633_R3_REVERSE_LUNGE_EXACT_REAR_FOOT_WORLD_ANCHOR_FRONT_FOOT_GATHER_BACKWARD",
    "timingAuthority": "Exact V6.33 R2 rear-foot local return trajectory converted to outer-world backward travel; source semantics verified against supplied Reverse Lunge MOV: rear foot remains planted while former front/support foot gathers backward."
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  "visualQA": {
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    "route": "preview.html?workout=dynamic-warmup#pass",
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}