Domain: Healthcare — Pharmacy
Target concept: Tablets vs. Capsules vs. Water-Soluble Liquids

Video generation prompt: Three glass cups filled with distilled water are placed side by side: a tablet is placed in the cup on the left, a capsule is placed in the middle cup, and a liquid medication is poured into the cup on the right.

Evaluation guide:
(i) Target concept: Differential dissolution kinetics of oral dosage forms in aqueous medium.
Minimum mechanism: Water must be chemically inert solvent; tablet must be a compressed powder matrix held together by a water-permeable/soluble binder that gradually erodes and dissolves on contact with water; capsule must have an intact hydrophilic gelatin/polymer shell that stays cohesive until it hydrates and ruptures, releasing its contents; liquid medication must be miscible aqueous solution with no suspending agents.
(ii) Storyline: Frame 1–2: Three identical water-filled cups stationary, side-by-side. Frame 3–4: Tablet lowered into left cup, remains whole, no immediate change. Frame 5–6: Capsule lowered into middle cup, rests intact, no release. Frame 7–8: Liquid medication poured into right cup; it blends into the water as it enters, with no floating layer or separation. Frame 9: Capsule shell in the middle cup ruptures, releasing its contents into the water. Frame 10: All three cups held static; tablet shows surface erosion, capsule's released contents have dispersed into the water around the ruptured shell, right cup shows a single uniform color. No reversal, no cross-contamination, no motion outside cups.

Manual:
Experimental Procedure
1. Place three identical transparent glass cups side-by-side on flat surface.
2. Fill each cup to same level with distilled water.
3. Place one intact tablet into left cup.
4. Place one intact capsule into middle cup.
5. Pour liquid medication into right cup until water level rises slightly.
Observation of Experimental Phenomena
- Tablet shows slow surface erosion or effervescence, remaining mostly intact.
- Capsule shell stays geometrically intact initially, then releases contents suddenly.
- Liquid medication mixes immediately and uniformly, showing no layering or separation.
Summary of Experimental Principles
Tablets disintegrate gradually due to binder dissolution; capsules delay release via gelatin shell dissolution; water-soluble liquids require no disintegration and dissolve instantly upon contact.

Prompt Grounding rubric:
level_1: No three glass cups are visible, or fewer than three cups appear, or the cups are not filled with a clear liquid, or the tablet, capsule, or liquid medication is missing entirely, or the objects are not arranged in a left-cup / middle-cup / right-cup layout.
level_2: Three glass cups filled with clear liquid are present, but at least one assignment is wrong: the tablet is not in the left cup, the capsule is not in the middle cup, or the liquid medication is not poured into the right cup; or one object type is swapped for another (e.g., the capsule appears in the right cup) or replaced with an unrelated item (e.g., a coin or powder in place of the capsule).
level_3: Three glass cups of clear liquid stand side by side in a left-middle-right row; a tablet sits in the left cup, a capsule sits in the middle cup, and a liquid medication is poured into the right cup; each object matches its named type and keeps its assigned cup for the whole video.
level_4: All conditions for score 3 are met, and additionally: the tablet and capsule are shown fully intact and unbroken at the moment each is placed into its cup, the liquid medication is visibly different from plain water (e.g., a distinct color or opacity) before it enters the right cup, and the pour is shown as one deliberate stream reaching the cup rather than several disconnected splashes or an off-camera cut.
level_5: All conditions for score 4 are met, and additionally: the tablet, the capsule, and the poured liquid stream stay confined to their own assigned cup and never cross into another cup; no cup or object is duplicated, dropped, or swapped between shots; and the placements and the pour all play out in one continuous take, with no hard cut or camera-angle change that could hide a substitution.

Scientific and Causal Correctness rubric:
level_1: No scientifically plausible difference in dissolution/release behavior is shown among the three dosage forms: e.g., the tablet disappears the instant it touches the water, the capsule shell is gone before it even reaches the water's surface, the liquid medication stays as an unmixed floating layer for the whole video, or all three objects behave the same way with no distinction between binder erosion, delayed shell release, and immediate mixing.
level_2: At least two of the three dosage forms behave in a way that contradicts how they actually work: e.g., the capsule shell erodes gradually like the tablet instead of rupturing after a delay, the tablet bursts open suddenly like a capsule instead of eroding gradually, the liquid medication keeps a visible streak or unmixed pocket for the entire video, or any object begins dissolving/releasing before it is fully submerged.
level_3: The three dosage forms show clearly different, mechanism-appropriate behavior: the tablet erodes gradually from its surface (with or without visible fizzing) while staying largely intact, the capsule shell stays visibly whole for a period and then ruptures, releasing its contents in a comparatively sudden burst, and the liquid medication blends into the water as soon as it enters the right cup with no floating layer; none of the three shows any change before contacting the water.
level_4: All conditions for score 3 are met, and additionally: the capsule maintains a clearly intact, unbroken shell for a sustained period before it ruptures (its release is not instantaneous upon contact with water), the liquid medication shows no floating film, sediment, or separated band at any point after it enters the cup, and none of the eroded, released, or mixed material re-forms back into its original solid shape.
level_5: All conditions for score 4 are met, and additionally: the tablet's erosion stays confined to its outer surface rather than crumbling into large chunks, the capsule shell keeps one continuous, unbroken outline right up until the instant it releases its contents, and the right cup reaches a single uniform color and clarity, with no streaks or swirl patterns still visible by the end of the video.

Spatiotemporal Consistency rubric:
level_1: A severe break in physical continuity occurs: e.g., one of the three cups jumps to a different position or vanishes between frames, a cup cracks or shatters and is then shown whole again, an abrupt lighting shift makes an object suddenly harder to see or momentarily invisible, or the tablet/capsule appears fully dissolved in one frame and fully solid again in a later frame with no visible in-between state.
level_2: Multiple smaller continuity breaks occur: e.g., the tablet or capsule shifts to a new position inside its cup with no visible motion connecting the two spots, the capsule appears rotated by more than 90 degrees with no visible tumbling, the poured liquid stream appears already in mid-air with no visible bottle/container/hand feeding it, the water level in a cup changes abruptly with no visible cause, or the shadow direction flips inconsistently across frames with no matching light-source change.
level_3: The three cups keep the same left-middle-right positions relative to each other for the whole video; the tablet in the left cup, the capsule in the middle cup, and the poured liquid in the right cup are each visible once introduced and none of them blinks out or reappears without a visible cause; the pour into the right cup follows one unbroken path from its source to the cup; and the cups keep the same shape and outline in every frame.
level_4: All conditions for score 3 are met, and additionally: the poured liquid stream enters the right cup from a visible source outside the cup and curves smoothly rather than jumping between positions; the tablet and capsule sink into the water at a steady pace right after being placed, without bouncing back up or hovering above the surface; and the outlines of the cups and objects stay continuous from frame to frame without flickering in and out.
level_5: All conditions for score 4 are met, and additionally: the reflections and highlights on the glass cups shift smoothly and stay plausible as the water's clarity and level change; the table and background behind the cups stay fixed and undistorted for the whole video; and no motion blur or camera shake ever makes it unclear whether a given shape is the tablet, the capsule, or the poured liquid.