task_illustrations__library__swapped_tile_pair_label

Summary

• Domain: illustrations
• Scene id: library
• Implementation source scene: library
• Implementation source: src/trace_tasks/tasks/illustrations/library/swapped_tile_pair_label.py

Task Contract

Renders a library source illustration as a numbered 3x3 grid, swaps exactly two grid cells, and shows four lettered options naming possible swapped cell pairs. The model selects the option letter for the actual swapped pair.

Program Contract

Program: select_option(identify_swapped_tile_pair(numbered_tile_grid, option_pairs)); scene=library; scope=swapped_tile_pair_label

Candidate set: the visible illustrated scene objects, people, regions, tiles, patches, labels, and option panels inside the swapped_tile_pair_label objective scope. Operands: visible scene state and prompt-bound operands named by identify_swapped_tile_pair, numbered_tile_grid, option_pairs, library, swapped_tile_pair_label. Operation: evaluate select_option over the candidate set using the visible illustrated objects, regions, layout relationships, counts, patch/tile transforms, or option-selection constraints encoded in the program expression; generation enforces a unique final answer. Output binding: answer uses the option_letter schema; one of the visible option letters A through D. Annotation witnesses: annotation uses the bbox_set schema; the prompt/annotation contract defines the minimal visual witnesses. Query ids: single.

Reasoning Operations

Families: transformation

Query Branches

Query id	Program schema
single	select_option(identify_swapped_tile_pair(numbered_tile_grid, option_pairs)); scene=library; scope=swapped_tile_pair_label

Program Metadata

• Program signatures: selection.visual_anomaly
• Base program contract: select_option(identify_swapped_tile_pair(numbered_tile_grid, option_pairs)); scene=library; scope=swapped_tile_pair_label
• Parameter axes: section_count, section_book_counts, swapped_pair, canvas_profile
• Arguments:
• numbered_tile_grid: semantic_role; allowed library_3x3_numbered_tile_grid; source program_schema_concrete
• option_pairs: semantic_role; allowed A_D_lettered_cell_pair_options; source program_schema_concrete
• swapped_pair: sampled_relation; allowed two_distinct_cells_from_1_to_9; source trace_metadata
• canvas_profile: render_parameter; allowed landscape, square, portrait; source trace_metadata
• Argument metadata status: curated
• Supported query ids: single

Answer Contract

• Answer schema: option_letter
• Generator answer_gt.type: option_letter
• The answer value is one of the visible option letters A through D.

Annotation Contract

• Annotation schema: bbox_set
• Generator annotation_gt.type: bbox_set
• Annotation contains exactly two final-image pixel boxes around the two swapped numbered grid cells. Do not include option boxes, option labels, all grid cells, books, shelf sections, or context-only source-scene regions.

Prompt And Trace Requirements

• Prompt text must come from src/trace_tasks/resources/prompts/illustrations/library/illustrations_library_v0.json.
• Render randomness, sampled library setting/style, section/book counts, cell-label font, selected swapped pair, option pairs, and verifier payloads must be explicit in the instance trace.
• The task always uses a fixed 3x3 grid with visible numbered cells 1 through 9.
• The selected pair is sampled only from cells with enough visual detail and enough pairwise difference to make the swap visible.
• The rendered source grid must use only functional grid lines, cell numbers, and option marks; do not add decorative source-image borders or frames.
• The swapped cell bboxes, answer label, selected pair, and option pairs must all come from the same compose_swapped_tile_pair_mcq execution trace.