Domain: Humanities and Social Sciences — Economics
Target concept: Draw a bar chart comparing various expenditures under a fiscal deficit.

Video generation prompt: A set of axes is displayed on the screen, with the horizontal axis representing budget category and the vertical axis representing amount. Under conditions of fiscal deficit, a bar chart is created to represent income and expenditure.

Evaluation guide:
Target Concept: Fiscal deficit as a visualizable relational condition, defined as "total government expenditure exceeds total government revenue" within a fixed accounting period. Minimum assumptions: (1) monetary amounts are quantifiable and comparable across budget categories; (2) bar height is a valid visual channel for magnitude comparison; (3) budget-category identity justifies separate, evenly spaced positions along the x-axis; (4) color coding (green=income, red-orange=expenditure) is used consistently and is perceptually distinguishable. Expected Phased Storyline: [Phase 1: Setup] Axes appear: horizontal axis labeled "Budget Category", vertical axis labeled "Amount". [Phase 2: Income Anchor] A green bar rises at the leftmost position, representing income/revenue. [Phase 3: Expenditure Bars] Three or more red-orange bars rise sequentially to the right, each one taller than the income bar, representing distinct expenditure categories that collectively exceed income. [Phase 4: Stable Deficit Signal] The final frame holds with the height difference between the income bar and expenditure bars clearly visible: no numbers, no annotations, no further motion. Visibility Constraints: legible at 1080p; no occlusion; axis labels readable without zooming; color contrast sufficient for the green and red-orange bars to be told apart; all bars fully within frame.

Manual:
Fiscal Deficit Expenditure Bar Chart Demonstration Instructions
I. Basic Demonstration Information
Demonstration Title: Bar Chart Visualization of Income vs. Expenditure Under Fiscal Deficit Conditions
Subject: Humanities and Social Sciences — Economics — Public Finance
Demonstration Purpose: To visually demonstrate how a fiscal deficit manifests in a bar chart — specifically, by displaying income (revenue) and multiple categories of government expenditure on a shared coordinate system where the horizontal axis represents "Budget Category" (i.e., the distinct budget items being compared) and the vertical axis represents "Amount" (i.e., the monetary magnitude, serving as the quantitative scale). The chart must clearly show that total expenditure bars exceed the income bar, visually encoding deficit conditions. This supports conceptual understanding of fiscal imbalance, budgetary visualization literacy, and interpretation of public finance data.

II. Demonstration Carrier/Equipment
Core Carrier: Digital charting interface (e.g., clean vector-based 2D plotting environment with no gridlines or decorative elements unless specified); pre-defined dataset comprising one income value and ≥3 distinct expenditure categories (e.g., Education, Healthcare, Defense, Debt Servicing), where sum of expenditures > income.
Auxiliary Equipment: Neutral gray background (RGB 240,240,240); sans-serif font (e.g., Arial, 14pt); axis labels rendered in bold black text; consistent color-coding: income bar = green (#2E7D32), expenditure bars = red-orange gradient (#D32F2F → #EF6C00) to signal fiscal strain; optional subtle deficit annotation ("Deficit = Expenditure − Income") in bottom-right corner.

III. Demonstration Content Description
Layout: A single Cartesian coordinate system appears centered on screen. Horizontal (x) axis labeled "Budget Category" (aligned below axis, centered), vertical (y) axis labeled "Amount" (rotated 90°, aligned left of axis, centered). Both axes extend fully across visible plot area with tick marks but no numeric values shown (to emphasize structural relationship over precise quantification).
State Control: Chart renders in static, non-animated sequence: (1) axes appear first; (2) income bar drawn vertically at x=0 (leftmost position); (3) ≥3 expenditure bars drawn sequentially rightward (x=1, x=2, x=3…), all taller than income bar; (4) final frame holds for ≥2 seconds with clear visual dominance of red-orange expenditure bars over green income bar.
Comparison Baseline: All bars share identical width and spacing; y-axis scale is linear and consistent; no logarithmic scaling or distortion. Height difference between income and tallest expenditure bar is ≥30% of income height — ensuring deficit condition is perceptually unambiguous.

IV. Observation of Core Phenomena
Axes Appearance: A clean pair of orthogonal black lines forms the coordinate system. Horizontal line (x-axis) runs left-to-right, labeled "Budget Category"; vertical line (y-axis) runs bottom-to-top, labeled "Amount". No arrows, no origin marker "(0,0)", but orientation is unambiguous.
Income Bar: Single upright green rectangle, positioned at far-left (x=0), height proportional to revenue value. Uniform fill, no outline, no label on bar.
Expenditure Bars: ≥3 upright rectangles, positioned sequentially to the right of income bar (x=1,2,3), each in warm-toned red-orange hues. All are visibly taller than the green income bar. No overlapping, no stacking — side-by-side comparison only.
Deficit Visual Signal: The collective visual weight and vertical extent of red-orange bars dominate the frame; green bar appears comparatively short and isolated — creating immediate perceptual contrast confirming "expenditure > income".
Stability & Clarity: No flickering, no partial rendering, no occlusion. All elements remain static and fully legible throughout final display. Color contrast ratio (green vs. red-orange against gray background) exceeds WCAG AA standard (≥4.5:1) for accessibility.

V. Summary of Key Knowledge Points and Principles
Core Concept Definition: A fiscal deficit occurs when a government's total expenditures exceed its total revenues (excluding borrowing) within a given period. Visualizing this via comparative bar charts transforms abstract macroeconomic imbalance into an intuitive spatial relationship: longer bars = larger monetary outflows.
Principle of Visual Feature Recognition Comparison: The human visual system rapidly detects relative height differences in aligned vertical bars. By fixing the x-axis as "Budget Category" (a categorical axis identifying each budget item) and the y-axis as "Amount" (a quantitative axis measuring monetary magnitude), the chart enforces a direct, ordinal comparison. The deficit is not calculated numerically but recognized visually via height asymmetry — a standard convention in bar-chart design for comparing discrete categories against a shared numeric scale.
Further Knowledge: Real-world fiscal charts often include borrowing (deficit financing) as a separate bar or annotation; however, this demonstration isolates the core deficit condition (expenditure > revenue) without introducing secondary mechanisms. "Budget Category" (horizontal) and "Amount" (vertical) follow the standard categorical-axis/quantitative-axis convention used in most bar charts, so a viewer familiar with ordinary bar charts can read the chart without any special training.

VI. Demonstration Precautions
Axis Label Fidelity: "Budget Category" must appear only on the horizontal axis; "Amount" only on the vertical axis — swapping labels invalidates the demonstration. Font size and weight must ensure legibility at standard viewing distance.
Color Semantics: Green must exclusively represent income; red-orange hues must exclusively represent expenditures. Use of blue, purple, or gray for any bar constitutes misrepresentation of fiscal signaling conventions.
Bar Count Minimum: Exactly one income bar + at least three distinct expenditure bars required. Two expenditure bars or zero expenditure bars fails the "various expenditures" requirement.
Temporal Integrity: Axes must render before any bars. Bars must appear in left-to-right order (income → expenditure1 → expenditure2 → …). No simultaneous pop-in or randomized order.
No Extraneous Elements: No titles, legends, data values, gridlines, animations, or sound. Chart must be minimal, pedagogically focused, and self-contained.

Prompt Grounding rubric:
level_1: No coordinate axes appear; or axes appear but are mislabeled (e.g., 'Amount' on the x-axis or 'Budget Category' on the y-axis); or no bars are rendered; or only a single bar appears; or bars are oriented horizontally instead of vertically; or bar colors bear no relation to income/expenditure (e.g., every bar is the same arbitrary color unrelated to the described scheme).
level_2: Axes appear but at least one required label ('Budget Category' or 'Amount') is missing; or two or fewer bars total appear (e.g., income plus only one expenditure); or all bars share one identical color with no distinction between income and expenditure; or the income bar is missing entirely; or bars overlap each other or are stacked rather than placed side by side.
level_3: Axes are labeled 'Budget Category' (horizontal) and 'Amount' (vertical) and are perpendicular; one income bar and at least three expenditure bars are present, arranged side by side; but bar widths or spacing are visibly inconsistent, or one or more axis labels are hard to read (too small, low contrast, or oddly placed).
level_4: Axes are correctly labeled and perpendicular; exactly one bar (in a distinct color, e.g. green) sits at the left representing income; at least three bars (in a second distinct color, e.g. red-orange) sit to its right representing expenditures; all bars share consistent width and even spacing; labels are legible; only a minor cosmetic flaw remains, such as one expenditure bar rendered in a slightly off hue, or a non-neutral/glary background.
level_5: The chart matches the prompt precisely: axes labeled 'Budget Category' (horizontal) and 'Amount' (vertical); one income bar in a single consistent color positioned at the left; three or more expenditure bars in a second consistent color positioned to its right, evenly spaced, equal in width, arranged side by side with no overlap or stacking; background is neutral and uncluttered; axis labels are bold and clearly legible; no extraneous chart elements (titles, legends, gridlines, or data callouts) appear.

Scientific and Causal Correctness rubric:
level_1: The chart visually contradicts fiscal deficit: the income bar is as tall as or taller than every expenditure bar; or the color coding is reversed (red-orange used for income, green for expenditure); or the chart depicts unrelated quantities that have no income/expenditure relationship.
level_2: Whether a deficit is shown is unclear: expenditure bars are only marginally taller than the income bar -- e.g., the height difference is no more than about 5% of the income bar's height, too small to read reliably as 'greater than' -- or some expenditure bars are shorter than the income bar while others are taller, so the total picture does not clearly show expenditure exceeding income.
level_3: Every expenditure bar is clearly taller than the income bar, so a deficit is visually readable, but the income-vs-expenditure comparison is weakened by inconsistent visual treatment: for example, only the income bar has an outline while expenditure bars do not, or the bars are not grouped/ordered in a way that makes the comparison immediate.
level_4: Every expenditure bar is clearly and unambiguously taller than the income bar, so total expenditure visually exceeds income; the income/expenditure distinction is reinforced by consistent color coding (one color for income, a different color for all expenditures); the height differences are large enough to be read at a glance without measurement; only a small refinement is missing, such as the height gap being generous for most expenditure bars but only barely sufficient for one of them.
level_5: The deficit relationship is unambiguous and requires no calculation to read: every expenditure bar is clearly taller than the single income bar, with height differences large enough to be obvious at a glance; income and expenditure are consistently distinguished by color; no bar's height or placement suggests a competing or contradictory reading (no expenditure bar appears equal to or shorter than income); the chart's sole visual message (expenditure collectively and individually exceeding income) is legible without labels, numbers, or annotation.

Spatiotemporal Consistency rubric:
level_1: Axes appear after the bars instead of before; or the bars appear in a scrambled order (e.g., an expenditure bar appears before the income bar); or bars visibly shift position after first appearing; or the two axes are not drawn perpendicular to each other (e.g., visibly skewed); or bar heights change after the bars have already appeared with no clear cause; or the background behind the chart flickers or suddenly changes color partway through.
level_2: Axes and their labels appear with a noticeable, disjointed delay between them; or all bars pop in simultaneously instead of appearing left to right; or the income bar is not aligned to the leftmost position; or bars differ visibly in width or sit on different baselines; or the vertical axis appears asymmetric around the origin for no reason.
level_3: Axes appear fully formed before any bars, and bars appear in the correct left-to-right order (income, then each expenditure bar in turn), and all bars sit on a common baseline; but one small hitch occurs, such as one bar appearing very slightly out of alignment with the shared baseline, brief jitter in the axis labels as they appear, or a very short stutter during the transition from axes to bars.
level_4: Axes render fully and remain stable first; the income bar appears at the left; expenditure bars then appear one at a time moving rightward at a steady pace; all bars share the same baseline, width, and even spacing with no visible drift or rescaling after appearing; the only shortfall is that the final still frame holds for somewhat less than the roughly 2-second pause expected once fully drawn.
level_5: The sequence is fully consistent: axes appear and hold steady, then the income bar appears, then each expenditure bar appears in turn moving rightward, ending in a held final frame with no further changes; the axes remain perpendicular throughout; all bars sit on one shared baseline with visibly even spacing and matching width; no bar appears, disappears, jumps, or resizes outside of its single appearance moment; the background stays neutral and unchanged throughout with no flicker or color shift.