{
  "schemaVersion": 1,
  "taskId": "single-hop-takeoff-airborne-landing",
  "creationKind": "original-geometric-illustration-and-method",
  "evidenceClass": "method-not-independently-tested",
  "firstFrameFile": "S01-first-frame.png",
  "reviewGuide": {
    "file": "review-guide.svg",
    "role": "authored intended geometry/review illustration; not a model result and not an uploaded last frame"
  },
  "inputCount": 1,
  "sourceType": "fictional-geometric-practice-not-real-product",
  "input": "S01-first-frame.png shows a fictional adult as a simple full-body side-view illustration. Two differently colored shoe profiles are separated enough to read, both meet one horizontal floor line, and the frame leaves open space above the head. There is no chair, step, obstacle or support prop. The three-panel guide suggests planted, airborne and planted observations; those silhouettes are authored diagrams, not sampled video frames.",
  "anchors": "Track both shoe soles, the floor line, the body outline and the fixed camera. Feet are allowed and required to lose contact during the airborne phase, unlike a sit-to-stand exercise. The picture does not prescribe measured joint angles or a safe exercise technique.",
  "originalPrompt": {
    "en": "Begin from the supplied original full-body fictional-adult illustration, with both distinct shoes contacting the visible horizontal floor line and clear space above the head. Keep the camera and floor fixed. The same adult makes a slight preparatory knee bend, performs one small upward hop, visibly lifts both feet clear of the floor for a brief readable airborne phase, then lands back on the same floor and settles. Keep the whole body and both shoe outlines inside the frame. Do not hold one foot on the floor while stretching the body upward, levitate without takeoff, cut between planted poses, sink through the floor or repeat a second jump. Do not add a step, obstacle, acrobatics, new prop or camera move. End with both shoes back in contact and the body quiet. This is an untested visual support-phase request, not a measured jump, biomechanics assessment or physical exercise instruction.",
    "zh": "从提供的原创虚构成人全身插画开始，两只轮廓可区分的鞋都接触可见水平地面线，头顶有清楚空白。相机和地面固定。同一成人先轻微屈膝预备，然后只向上小跳一次，两只脚可见地完全离开地面，形成短暂但可辨的腾空阶段，再落回同一地面并稳定。全身和两只鞋始终留在画面内。不让一只脚留在地上同时拉长身体，不无起跳直接悬浮，不在两个着地姿态间切镜，不陷入地板，也不再跳第二次。不新增台阶、障碍、空翻、道具或相机运动。结尾两鞋重新接触地面，身体安静。这是未实测的视觉支撑阶段要求，不是跳跃测量、生物力学评估或现实运动指导。"
  },
  "steps": {
    "en": [
      "Check that both shoes meet the original floor and remain individually visible. Reject a crop that hides a sole or puts the head against the top border before adding movement.",
      "Request a slight preparatory bend, one small upward hop, a brief clear two-foot gap, and a return to the same floor. Keep it one continuous camera shot without an obstacle or a second hop.",
      "After any future generation, inspect takeoff separately from landing. Find a visible phase in which neither shoe touches the floor, rather than assuming the body rose because its head moved upward.",
      "Review the landing and settled pose. Floor penetration, suspended shoes, repeated bouncing or an elongated body attached to one planted foot should be recorded as failures, even if the ending looks upright."
    ],
    "zh": [
      "确认两只鞋都接触原地面，且轮廓分别可见。鞋底被裁掉或头顶没有余量时，先修构图，再写动作。",
      "按轻微预备屈膝、一次小幅向上跳、可辨双脚间隙、回到原地面的顺序描述。保持连续镜头，不加障碍和第二跳。",
      "以后实际生成后，把起跳和落地分开检查。寻找两只鞋同时不接触地面的中间阶段，不因为头部抬高就假定身体腾空。",
      "再看落地与稳定阶段。鞋陷入地板、持续悬空、反复弹跳或一只脚钉住而身体拉长，都应记录失败，不能由结尾站直掩盖。"
    ]
  },
  "acceptance": {
    "en": [
      "Both distinct shoe soles contact the original floor before movement.",
      "A visible small preparation precedes takeoff rather than a cut directly to a raised pose.",
      "A readable middle phase shows both shoes clear of the floor.",
      "The same body remains coherent; no stretching from one pinned foot substitutes for the gap.",
      "Both shoes return to the same floor without penetration or continued hovering.",
      "The adult settles once, with no second hop and no moving camera or floor."
    ],
    "zh": [
      "动作前，两只可区分鞋底都接触原来的地面。",
      "先有可见小幅预备，不直接切换成抬高姿态。",
      "中间阶段两只鞋同时清楚离开地面。",
      "同一身体连贯，不用一脚固定而身体伸长替代腾空。",
      "两只鞋回到同一地面，没有穿透或继续悬浮。",
      "只落稳一次，没有第二跳，相机和地面不动。"
    ]
  },
  "ending": {
    "en": "Store separate notes for initial contact, takeoff, two-foot clearance and final contact. A standing last frame cannot prove that a hop occurred in between.",
    "zh": "把初始接触、离地、双脚间隙和最终接触分别记下。最后站直的一帧，不能证明中间真的完成了一跳。"
  },
  "modelGeneration": "not-executed",
  "paidCalls": 0,
  "outputMedia": [],
  "sourceBriefRef": "S14-next-original-task-briefs-20261022-02#single-hop-takeoff-airborne-landing",
  "exactTaskSearchVolume": null,
  "extraObservationSources": []
}