Domain: Humanities and Social Sciences — Architecture & Urban Planning
Target concept: Interchanging the Doric, Ionic, and Corinthian column capitals on the same column shaft

Video generation prompt: In a studio, the capital of a stone column was successively replaced: first with a Doric, then an Ionic, and finally a Corinthian.

Evaluation guide:
(i) Target concept: Architectural typology demonstration via sequential capital substitution on a static column shaft.
Minimum mechanism: A single immutable stone column shaft must serve as the sole substrate; each capital must be physically removable and replaceable; typological identity must derive solely from canonical visual morphology (not labels, colors, or narration); studio lighting and framing must enable unambiguous feature recognition.
(ii)Storyline: Frame opens on bare stone column in studio; Doric capital descends into view and settles fully onto shaft (visible contact and stability); after stable dwell time, Doric lifts off or is removed; Ionic capital descends and settles identically; after stable dwell time, Ionic lifts off; Corinthian capital descends and settles; final frame holds Corinthian on shaft. All actions occur from fixed frontal perspective; no cuts or edits break continuity; lighting, column position, and background remain invariant; viewer must perceive three discrete, causally linked, morphologically distinct states in strict order.

Manual:
Experimental Procedure
1. Place a plain stone column shaft upright in a neutral studio setting.
2. Mount a Doric capital onto the top of the shaft.
3. Remove the Doric capital and mount an Ionic capital in its place.
4. Remove the Ionic capital and mount a Corinthian capital in its place.
Observation of Experimental Phenomena
Three distinct capitals appear sequentially on the same column shaft: first a plain, sturdy Doric capital; second a slender Ionic capital with symmetrical volutes; third an ornate Corinthian capital with acanthus leaves — each fully seated, centered, and visually self-contained.
Summary of Experimental Principles
Doric, Ionic, and Corinthian are the three canonical Greek orders; their capitals encode distinct formal languages and historical evolution. Interchanging them on a single shaft demonstrates typological contrast and hierarchical progression — not structural compatibility — emphasizing stylistic intention over engineering function.

Prompt Grounding rubric:
level_1: No stone column present; no visible capital replacement sequence; no studio setting; zero Doric/Ionic/Corinthian capitals shown.
level_2: A stone column is present, but capitals are absent, mislabeled, or non-architectural (e.g., geometric shapes, plants, or text); studio context is ambiguous or missing; no sequential replacement visible.
level_3: A stone column is present in a studio setting; three distinct capitals appear, but not in the required order (Doric → Ionic → Corinthian); at least one capital matches its correct architectural type by silhouette and key features (e.g., Doric has plain echinus and no volutes; Ionic has bilateral volutes; Corinthian has acanthus leaves), but sequence is incorrect or interrupted.
level_4: A stone column is present in a studio setting; three capitals appear sequentially: first Doric, then Ionic, then Corinthian; all three capitals are visually recognizable as their correct types by canonical features; however, one capital is partially occluded, misaligned on the shaft, or appears with an inconsistent viewpoint (e.g., sudden camera shift between replacements).
level_5: A stone column is present in a studio setting with stable fixed viewpoint; Doric capital appears first, fully seated on the shaft and clearly identifiable by plain echinus and absence of volutes; then it is replaced (visibly removed or swapped) and Ionic capital appears second, fully seated and identifiable by bilateral volutes; then it is replaced and Corinthian capital appears third, fully seated and identifiable by acanthus leaf motif and bell-shaped basket; all three appear in strict temporal order without interruption, overlap, or viewpoint change.

Scientific and Causal Correctness rubric:
level_1: No coherent architectural typology is preserved: a capital shown as Doric has volutes, a capital shown as Ionic has acanthus leaves, or a capital shown as Corinthian has a plain echinus with no leaves (i.e., the type shown is simply the wrong classical order), or a single capital combines defining features from two orders at once (for example, the same capital shows both bilateral volutes and an acanthus-leaf collar), or a capital is wildly out of proportion with the shaft it sits on (bulging far past the shaft's edges, or looking like a thin disc balanced on top of it).
level_2: One capital borrows a stray feature from another order without becoming a different type outright (e.g., a faint scroll curl appears at the corners of the capital presented as Doric, or the Ionic capital shows a fringe of leaf carving beneath its volutes), or a capital's width relative to the shaft is clearly implausible for its type (e.g., the capital presented as Corinthian looks noticeably stouter and plainer in overall mass than the Doric capital shown before it).
level_3: Each capital shows the broadly correct order (the Doric capital has a plain echinus and no volutes, the Ionic capital has bilateral volutes and no acanthus, the Corinthian capital has acanthus leaves and no bare echinus), and no capital borrows a feature from another order, and each capital's width relative to the shaft is broadly plausible for its type; but at least one capital is missing a defining sub-feature of its canonical form (e.g., the Ionic volutes are not symmetrical, or the Corinthian leaf basket does not fully wrap the bell), so the type reads correctly but not with full canonical precision.
level_4: Each capital is fully and exclusively typologically correct with no cross-order borrowing and no missing defining sub-feature (Doric shows unadorned echinus and abacus, Ionic shows symmetrical bilateral volutes, Corinthian shows a complete acanthus leaf basket), and each capital's proportion relative to the shaft is plausible for its type; only one minor flaw remains, such as the Ionic capital overhanging the shaft edge slightly more than is typical for its type, or the plain-to-ornate historical progression not being visually reinforced by relative slenderness across the sequence.
level_5: Every capital is typologically exact with explicit cross-order exclusions: Doric shows unadorned echinus + abacus, no base, no volutes; Ionic shows symmetrical bilateral volutes + decorated architrave band, no acanthus; Corinthian shows full acanthus leaf basket + central flower, no volutes, no echinus; each capital's width and height relative to the shaft precisely match the typical massing of its type; no typological, proportional, or material inconsistencies of any kind.

Spatiotemporal Consistency rubric:
level_1: The column shaft or a capital vanishes from view in one frame and reappears in a later one, or the column bends, stretches, or changes its stone texture partway through the video, or the camera's framing suddenly jumps to a different angle with no camera movement shown, or a capital shrinks away to nothing and then pops back at full size, or the studio lighting swings abruptly between bright and dark with no visible cause.
level_2: The column stays in view but visibly shifts sideways or up and down between one capital swap and the next; a capital blinks into or out of existence with no lowering or lifting motion connecting its appearance to its removal; the direction the shadows fall reverses, or the cast shadow disappears entirely, even though the lighting has not changed; studio background elements such as walls or tools blink in and out of view.
level_3: The column shaft stays in the same place and at the same size throughout the video; each capital swap happens through a visible motion (being lowered into place, lifted away, or slid off) or, if a hard cut is used instead, the column and background look identical on both sides of the cut; the shadows cast by the column and capitals keep pointing the same way and stay about the same darkness across the video; one swap uses an abrupt cut rather than visible motion, and the studio background shows a slight, uncalled-for shift in perspective between the two shots it straddles.
level_4: The column shaft never moves, rotates, or changes size; every capital swap happens through a continuous lowering or lifting motion that looks physically plausible; the direction and strength of the light on the stone, and the shadows it casts, stay the same across the whole video; the studio background stays fully consistent from start to end; the only flaw is a brief, barely perceptible wobble in a capital's alignment just before it settles fully onto the shaft.
level_5: The column shaft's position, size, and the camera's viewing angle never change even slightly across the entire video; every capital swap happens through smooth, continuous, physically believable motion, with no hard cuts, no capital vanishing and reappearing, and no sudden change in a capital's apparent size; the lighting direction, the shadows cast by the column and capitals, and any highlights on the stone surface stay perfectly consistent throughout; the studio background (walls, floor, any visible lighting rig) never shifts, flickers, or is unnaturally covered or uncovered by the column or capitals.