benchmark: FARTBench
spec_version: 0.1.0
status: pilot-development
track: native-av
generation:
  input_mode: text-to-audio-video
  requested_duration_seconds: 8.0
  aspect_ratio: '16:9'
  visual_style: photorealistic realistic live action
  shot_structure: single continuous shot
  reference_media: none
  non_diegetic_music: none
id: FB-C07
title: Exact Event Counting
purpose: Test discrete event counting and temporal separation within one continuous shot.
scene:
  location: quiet home kitchen
  subjects:
  - one adult standing at a kitchen counter preparing tea
  lighting: soft daylight
target_actor:
  description: adult man wearing a navy T-shirt
  role: sole event source
timeline:
- window_seconds:
  - 0.0
  - 1.5
  required: target quietly prepares tea; no fart occurs
- window_seconds:
  - 1.5
  - 2.8
  required: target produces the first short fart
- window_seconds:
  - 2.8
  - 5.0
  required: clear interval with no fart; target continues preparing tea
- window_seconds:
  - 5.0
  - 6.3
  required: target produces the second short fart, clearly distinct from the first
- window_seconds:
  - 6.3
  - 8.0
  required: no additional fart; target shows mild embarrassment and continues activity
audio:
  fart_audible: true
  fart_count: 2
  fart_character: two short natural human fart events separated by at least two seconds of no fart audio
  ambient: quiet kitchen room tone and subtle tea-preparation sounds
  dialogue: none
camera:
  framing: medium-wide
  movement: static
  target_visible: true
  cuts: 0
prohibited:
- visible gas or smoke
- defecation
- third or additional fart
- continuous merged fart replacing two discrete events
- dialogue
- music
objective_checks:
- field: event_present
  expected: true
- field: event_count
  expected: 2
- field: events_distinct
  expected: true
- field: event_gap_seconds_min
  expected: 2.0
- field: correct_actor
  expected: true
- field: visible_gas
  expected: false
- field: defecation
  expected: false
applicable_dimensions:
- A
- T
- L
- P
- I
- C
failure_codes_of_interest:
- F02
- F03
- F04
- F09
- F10
- F11
- F12
- F13
- F14
- F15