Update questions/README.md

questions/README.md

@@ -11,6 +11,9 @@ This directory contains the Flat-Pack Bench question set.
 question with metadata for locating the corresponding furniture, video, prompt
 media, and answer.
 
+This file is used to construct the input text for the questions fed into the models for benchmarking, to ensure that every 
+model gets a consistent text input.
+
 ## `questions.jsonl` Schema
 
 | Field | Type | Description |
@@ -23,11 +26,11 @@ media, and answer.
 | `vid_category` | string | Furniture category, such as `Chair`, `Table`, `Bench`, `Shelf`, or `Misc`. |
 | `furniture_name` | string | Furniture model name, such as `ronninge` or `stig`. |
 | `video_id` | string | Video identifier used to align videos, frames, masks, and prompts. |
-| `frame_idx` | integer or list | Prompt frame index for single-state questions, or a list for multi-state tracking questions. |
+| `frame_idx` | integer or list | Prompt frame index for single-state questions, or a list for multi-state tracking questions. Frame index is with respect to keyframe videos. |
 | `question` | object | Fully rendered multiple-choice question, options, and answer. |
-| `prompt_img_fn` | string | Prompt image filename for non-tracking questions, when present. |
-| `prompt_img_0_fn` | string | First prompt image filename for tracking/correspondence questions, when present. |
-| `jumbled_prompt_img_1_fn` | string | Second prompt image filename for tracking/correspondence questions, when present. |
+| `prompt_img_fn` | string | Prompt image filename for non-tracking questions, when present. Not required for interpreting the benchmark row. |
+| `prompt_img_0_fn` | string | First prompt image filename for tracking/correspondence questions, when present. Not required for interpreting the benchmark row. |
+| `jumbled_prompt_img_1_fn` | string | Second prompt image filename for tracking/correspondence questions, when present. Not required for interpreting the benchmark row. |
 | `media_dir` | string | Optional generation/cache provenance path. Not required for interpreting the benchmark row. |
 | `video` | string | Optional generated prompt/video filename from the benchmark pipeline. |