Domain: Humanities and Social Sciences — Sport
Target concept: Penalty Kick Award and Goal Demonstration

Video generation prompt: A player stands at the penalty spot, takes a run-up, and strikes the ball toward the goal. The goalkeeper dives toward one side of the goal, but the ball flies into the upper corner on the opposite side, and the referee signals that the goal is valid.

Evaluation guide:
(i) Target concept: Valid penalty goal awarded under FIFA Laws of the Game (Law 14), requiring correct placement, unimpeded execution, and ball crossing goal line between posts and under crossbar. Minimum mechanism: Striker must initiate motion from penalty spot; ball must be kicked forward; goalkeeper must remain on goal line until kick is taken; goal is awarded if ball enters goal without infringement.
(ii)Storyline: [Phase 1] Static setup: player centered at penalty spot, goalkeeper centered on goal line, referee positioned near the edge of the penalty area, goal frame fully visible. [Phase 2] Run-up initiation: player begins forward locomotion, maintaining orientation toward goal. [Phase 3] Strike event: foot contacts stationary ball, simultaneous with the goalkeeper's dive initiation toward one side of the goal. [Phase 4] Flight & entry: ball travels in a continuous arc into the upper corner on the side opposite the goalkeeper's dive, fully crossing the plane defined by the goal line, crossbar, and the relevant post. [Phase 5] Validation: referee observes full crossing and raises arm vertically, with no delay, no occlusion, no competing motion. All phases occur within a single fixed wide-angle shot; no subject leaves frame; no camera movement; visibility of all key regions (penalty spot, goal mouth, referee) maintained continuously.

Manual:
Experimental Procedure
1. Player stands motionless at penalty spot.
2. Player performs forward run-up (3–4 steps).
3. Player strikes stationary ball with foot.
4. Goalkeeper dives leftward from center of goal line.
5. Ball flies uninterruptedly into top-right corner of goal (bounded by upper crossbar and right post).
6. Referee raises one arm vertically to signal valid goal.
Observation of Experimental Phenomena
- Player starts at penalty spot and completes run-up before contact.
- Ball moves from rest to flight only upon foot contact.
- Goalkeeper initiates leftward dive synchronously with strike.
- Ball enters goal exclusively within top-right quadrant (above crossbar level, right of right post).
- Referee’s arm raise occurs only after ball fully crosses goal line.
Summary of Experimental Principles
Penalty Kick Award: Valid goal requires legal placement, proper execution, and no infringement; Goal Demonstration: Successful conversion hinges on striker’s accuracy and goalkeeper’s misdirection — top-corner placement exploits reaction-time limitation.

Prompt Grounding rubric:
level_1: None of the required setup elements appear: no penalty-spot marking, no player standing at it, no ball, no goalkeeper anywhere near the goal, no goal frame (posts/crossbar/net) in view, and no referee anywhere in the shot.
level_2: The pitch and goal frame appear, but the setup is wrong in a major way: for example, the player is not standing at the penalty spot (or no spot marking exists), the ball is missing or lying somewhere the player isn't, the goalkeeper is absent from the goal area entirely, or the referee never appears anywhere in the shot.
level_3: Player, ball, goalkeeper, goal frame, and referee all appear together in the shot: player standing at the penalty spot with the ball at his feet, goalkeeper somewhere on the goal line, the full goal frame (both posts, crossbar, net) in view, referee somewhere near the penalty area. But the arrangement is sloppy: e.g., the goalkeeper stands noticeably off-center toward one post rather than centered in the goal mouth, or the referee is positioned inside the six-yard box rather than near the penalty-area boundary.
level_4: Player is centered on the penalty spot with the ball at rest beside his standing foot, goalkeeper is centered on the goal line between the posts, the full goal frame with taut net stays in view, and the referee is stationed to the side near the penalty-area boundary with a clear sightline to the goal, but one visual detail is missing or off, e.g., the penalty-spot marking itself isn't visible on the pitch, the goalkeeper's kit doesn't visually read as goalkeeper attire (no gloves or contrasting jersey), or part of a post or the crossbar is cropped out of frame at some point.
level_5: Every setup element is correct at once and stays that way for the whole shot: the penalty-spot marking is visible with the player centered on it and the ball at rest beside his standing foot; the goalkeeper is centered on the goal line in visibly distinct kit (gloves, contrasting jersey); the entire goal frame (both posts, crossbar, and taut net) remains fully in view with no cropping; and the referee is stationed near the penalty-area boundary with a clear, unobstructed sightline to the goal mouth, all captured in one continuous wide shot with no cuts or camera repositioning.

Scientific and Causal Correctness rubric:
level_1: The causal chain of the penalty kick is violated at its foundation: for example, the ball appears inside the net before the player's foot ever touches it, the goalkeeper is shown diving only after the ball has already crossed the line, or the referee raises the goal signal while the ball is still resting at the penalty spot.
level_2: The strike and the goalkeeper's dive both occur, but the physical/causal logic breaks down: e.g., the goalkeeper's dive ends up on the same side of the goal that the ball enters (the ball does not beat the keeper to the far side), the ball is shown entering low along the ground while the referee's signal treats it as a valid corner-of-the-net goal with no such placement evident, or the ball changes direction in flight with no strike or deflection to explain it.
level_3: Foot strikes ball, the ball travels into a corner region of the goal on the side away from where the keeper is diving, the keeper dives toward one side, and the referee raises an arm, but the causal relationships are muddled: it's unclear whether the ball is actually inside the goal-frame quadrant bounded by the crossbar and the post on the far side from the keeper's dive, whether the keeper commits to the dive before or only after the ball's direction is already obvious, or whether the referee's arm-raise happens noticeably before the ball is shown fully crossing the line.
level_4: The ball travels without deflection from the foot into the upper corner of the goal on the side opposite the goalkeeper's dive (the region bounded by the crossbar above and the far post to that side); the goalkeeper visibly commits to diving toward one side essentially at the moment of contact, before the ball's path is evident; the referee's arm-raise follows the ball's full crossing of the goal line, but one element is imperfect, e.g., the ball momentarily grazes the crossbar or post before entering, or the keeper's dive doesn't reach far enough toward the committed side.
level_5: The full penalty-kick causal chain is unambiguous: the goalkeeper stays on the goal line until the instant of the strike, then commits fully toward one side without ever touching the ball; the struck ball flies with no contact against post or crossbar directly into the upper corner on the side opposite the keeper's dive, beating the keeper cleanly; the referee's arm-raise for a valid goal occurs only once the ball is shown fully past the goal line. The keeper's wrong-way dive and the ball beating him to the far upper corner is the visibly clear reason the goal is awarded as valid.

Spatiotemporal Consistency rubric:
level_1: Severe continuity breaks: the player appears at the penalty spot already mid-strike with no visible run-up, the goalkeeper vanishes and reappears already in a diving pose, the ball disappears mid-flight and reappears inside the net, the goal frame changes size, shape, or position between moments, the pitch or water lighting swings abruptly brighter or darker between moments with no visible cause, or the camera cuts to a different shot or angle instead of holding the single fixed wide-angle view.
level_2: Noticeable discontinuities: the player's run-up stride freezes or skips steps instead of flowing step-to-step, the ball's flight path visibly snaps from one position to another mid-air instead of tracing a continuous arc, the goalkeeper's diving arm or leg appears fully extended without the preceding lean and push-off, or the camera's viewpoint suddenly shifts angle or distance partway through the shot.
level_3: Minor but visible inconsistencies: the foot-to-ball contact looks slightly disconnected (the ball starts moving an instant before or after the foot visibly reaches it), the ball's arc shows a brief visible waver rather than a smooth curve, the goalkeeper's dive pauses briefly partway through before continuing to full extension, or the referee's arm-raise shows a visible stutter or double-motion instead of one continuous lift.
level_4: Run-up, strike, ball flight, dive, and arm-raise all read as continuous, physically plausible motion with no vanishing or reappearing limbs or objects and no sudden camera-angle change, but one secondary detail is imperfect, e.g., the player drifts slightly sideways during the run-up beyond what a straight approach would produce, the net's mesh briefly loses its shape as the ball passes near it, or the turf stripe pattern on the pitch beneath the goalkeeper subtly warps for a moment during the push-off, correcting itself immediately after.
level_5: The entire sequence plays as one unbroken, physically coherent shot: the run-up shows an even, accelerating stride into the strike; the foot-to-ball contact is a single continuous transition with no snap or gap; the ball traces one smooth arc from strike to goal; the goalkeeper's dive is one fluid lean-push-extend motion with no limb popping in or out; the referee's arm rises in one steady continuous motion; and background details (the net's mesh, the goalposts' shadows on the pitch, the grass texture) hold their shape and position consistently from the first moment to the last, with the camera never cutting or changing viewpoint.