{
  "schemaVersion": 1,
  "slug": "empty-palm-turn-backhand-reveal",
  "ownerPath": "/templates/empty-palm-turn-backhand-reveal",
  "sourceClass": "original-authored-task-with-deterministic-input",
  "demandType": "independent-product-lookup-value",
  "historicalExactQuery": null,
  "exactQueryVolume": null,
  "brief": {
    "en": "Plan one turn from palm-facing to back-of-hand-facing. The thumb must travel with the hand around its edge; replacing the palm drawing with a mirrored copy does not establish a continuous turn.",
    "zh": "规划从掌心朝镜头到手背朝镜头的一次翻转。拇指应随手经过侧缘，不能只把掌面图案镜像替换就认作连续转动。"
  },
  "phases": {
    "en": [
      "Palm: thumb is on picture left and palm creases are visible.",
      "Edge: the visible palm narrows while the thumb travels around the silhouette.",
      "Back: the back of the same hand faces the viewer; palm creases are hidden.",
      "Hold: the same wrist and forearm remain connected in the turned pose."
    ],
    "zh": [
      "掌面：拇指在画面左侧，掌纹可见。",
      "侧缘：可见掌面变窄，拇指沿轮廓经过侧边。",
      "手背：同一只手的背面朝镜头，掌纹被隐藏。",
      "停留：手腕仍连接原前臂，保持翻转后的姿态。"
    ]
  },
  "acceptance": {
    "en": [
      "The starting thumb root and palm surface are visible.",
      "Palm width narrows during an intermediate edge-on phase.",
      "Thumb motion can be followed around the changing contour.",
      "The hand does not jump directly to a mirrored flat image.",
      "Palm creases cease to face the viewer in the back-facing hold.",
      "One wrist stays connected to the same forearm throughout."
    ],
    "zh": [
      "起始拇指根部和掌面均可见。",
      "中间经过掌面明显变窄的侧缘阶段。",
      "拇指沿变化轮廓的运动能持续跟踪。",
      "手没有直接跳成镜像平面图。",
      "手背停留时掌纹不再朝镜头。",
      "同一手腕始终接在原前臂上。"
    ]
  },
  "h3Tested": false,
  "generatedOutput": null,
  "realPersonUsed": false
}