Domain: Healthcare — Anthropotomy
Target concept: The Morphology and Lobation of the Lung

Video generation prompt: A set of lung specimens is placed on the table in their normal thoracic position, and the morphology, size, and lobulation of the left and right lungs are observed.

Evaluation guide:
(i) Target concept: Accurate visual representation of human lung morphology and lobation in standard anatomical orientation.
Minimum mechanism: Specimens must be real or photorealistically rendered preserved lungs (not diagrams, models, or abstractions), positioned stably on a planar surface under consistent lighting, with fissures as topographic features and lobe count matching canonical human anatomy.
(ii)Storyline: Frame 1 → Both lungs enter static view on table in thoracic orientation; Frame 2–9 → Continuous static shot maintaining fixed viewpoint, revealing left lung with cardiac notch and two lobes, right lung with three lobes and horizontal fissure; causal transition: correct placement → visible fissure topology → unambiguous lobe identification; perspective constraint: frontal-oblique view (showing anterior and medial surfaces simultaneously), no occlusion, full visibility of anterior borders and fissure paths.

Manual:
Experimental Procedure
1. Place intact left and right lung specimens side-by-side on a flat, neutral-colored table.
2. Orient each lung in normal thoracic position: anterior surface forward, medial surface inward, diaphragmatic surface fully contacting table.
3. Ensure hilum faces medially and cardiac notch is visible on anterior border of left lung.
Observation of Experimental Phenomena
- Left lung shows two lobes (superior, inferior) separated by oblique fissure; cardiac notch present on anterior border.
- Right lung shows three lobes (superior, middle, inferior) separated by oblique and horizontal fissures.
- Right lung appears slightly larger in volume; medial surfaces are adjacent; fissures appear as continuous surface grooves.
Summary of Experimental Principles
The human lungs exhibit asymmetrical morphology: right lung has three lobes (separated by oblique and horizontal fissures), left lung has two lobes (separated by oblique fissure only) and a cardiac notch accommodating the heart.

Prompt Grounding rubric:
level_1: No lung specimens are visible, or only one lung is shown, or the specimens are not resting on a table, or their orientation makes no anatomical sense (rotated, upside-down, or floating), or other objects (heart, trachea, tools) dominate the frame instead of the lungs.
level_2: Two lung specimens sit on a table, but at least one is oriented wrong (e.g., its inner/medial face is turned up, its hilum faces away from the viewer, or front and back can't be told apart); or a hand, tool, or label blocks part of one lung; or the table surface is missing or not flat (e.g., a curved shelf or sloped surface).
level_3: Two lung specimens are fully visible on a flat table, each resting in a plausible upright orientation (front surface facing the viewer, inner/medial surface facing inward, hilum facing inward, cut/diaphragmatic surface down on the table); each lung's outer surface shows one or more visible grooves dividing it into separate lobes; no unrelated objects share the frame.
level_4: Everything required for the 3-point level is present, and in addition: the two lungs sit side by side with their inner surfaces close together (no gap wider than the width of one lung's inner surface); their relative size and shape look plausible as a matched pair (similar but not identical size, with one lung showing a distinct notch cut into its front edge where the other does not).
level_5: Everything required for the 4-point level is present, and in addition: the lung with the front-edge notch shows it clearly and without obstruction; each lung's fissures run as continuous, unbroken grooves from one part of the lung's surface to another, clearly separating its lobes with no blurring, smudging, or gaps in the groove line; no visual artifact hides any part of a fissure.

Scientific and Causal Correctness rubric:
level_1: The lobe count is wrong for one or both lungs (e.g., the lung without a front-edge notch is shown with three lobes, or the lung with a notch is shown with only two); or the lobes are fused together with no groove between them; or the specimens look like solid, featureless masses with no surface detail; or their color is wrong for preserved tissue (bright red, blue-tinted, or see-through).
level_2: The lobe count matches human anatomy, but the grooves that should separate the lobes are missing — a lobe boundary is suggested only by a shading trick or lighting rather than an actual physical groove; or a groove appears somewhere anatomy doesn't support (e.g., an extra short groove on the two-lobed lung); or the two lungs are shown as exactly the same size instead of one appearing modestly larger than the other; or neither lung shows any notch cut into its front edge, with nothing else hinting at where the heart would sit against it.
level_3: One lung's surface is divided by a single groove into two lobes, and it shows a distinct notch cut into its front edge; the other lung's surface is divided by two separate grooves into three lobes, and its front edge has no such notch; the two-lobed lung looks modestly smaller in overall bulk than the three-lobed lung; both specimens share a similar dull pinkish-tan to light-brown, non-glossy preserved-tissue color.
level_4: Everything in the 3-point level holds, and in addition: on the two-lobed lung, the single groove runs diagonally across the specimen from near its upper-back region down toward its lower-front region, consistent with an oblique fissure; on the three-lobed lung, one groove follows that same diagonal oblique path, and the second groove runs roughly horizontally across the lung's middle portion, separating a small middle section from the section above it; the notch on the two-lobed lung's front edge sits in the lower half of that edge, not the upper half; no lobe looks torn loose, folded over, or misshapen.
level_5: Everything in the 4-point level holds, and in addition: on the two-lobed lung, the diagonal groove runs all the way toward where the lung's central hilum region meets its lower surface, rather than fading out partway; on the three-lobed lung, the horizontal groove runs all the way to the lung's outer edge rather than stopping short; every groove reads as one continuous, unbroken indentation along its whole length, with no gaps, smudged sections, or artificial-looking breaks.

Spatiotemporal Consistency rubric:
level_1: The lungs jump to different positions or orientations between frames; one or both suddenly vanish and reappear; the tabletop warps, cracks, or changes material partway through; the lighting suddenly switches character (e.g., from a spotlight look to flat ambient light) with no visible cause; the lung surfaces flicker between different textures or shininess from one frame to the next.
level_2: One lung turns more than about a quarter-turn around its vertical axis between the start and end of the clip; the gap between the two lungs' inner surfaces widens or closes in a way that doesn't match any visible motion; the tabletop shows distortion that wouldn't occur from a fixed camera; a cast shadow points a different way than it did earlier in the clip with no light source moving to explain it; a lung's surface appears to stretch or compress unnaturally while otherwise sitting still.
level_3: Both lungs stay completely still for the whole clip with no sliding or rotating; the table stays flat and stable; the camera doesn't zoom, pan, or tilt; the lighting stays the same in color and brightness throughout, and any cast shadows keep pointing the same direction; nothing enters or leaves the frame; neither lung nor the table shows any warping or structural change.
level_4: Everything in the 3-point level holds, and in addition: neither lung shows any rippling, sagging, or bulging of its surface over time; the two lungs' inner surfaces stay the same distance apart throughout, neither drifting closer nor farther; the edges of the lungs and their fissures stay steady from frame to frame with no visible shaking or drifting.
level_5: Everything in the 4-point level holds, and in addition: the fissure grooves stay just as sharp, deep-looking, and well-defined in the final frame as in the first, with no shimmering or fading of the groove lines; the surface texture and brightness of the lung tissue look the same throughout, with no flashes of lighter or darker patches that don't correspond to anything actually happening in the scene.