Restaurant Chains Index 2.0: Seven Chains Too Close to Call
Evidence pack, 5W Public Relations Research

Measured: October 30 to 31, 2026 · 24 questions × 3 runs · 288 AI answers
This pack holds the measurement data behind the report. Every number in the report can be
recounted from these files. Counts in the report come from summary.csv and per_engine.csv.

Files:
- summary.csv: One row per tracked name: answers naming it, appearance rate and 95% interval, first-mention position, own-domain citation, citation share, Google AI Overview counts and five-engine totals.
- per_engine.csv: The same counts split by engine (ChatGPT, Claude, Gemini, Perplexity).
- significance.csv: Pairwise comparisons between the leading names (z-test, p-value, whether the 95% intervals overlap).
- sources.csv: Cited domains: number of citations, share of all citations, and how many answers cited each domain.
- entity_rollups.csv: Spellings and name variants counted together with each tracked name.
- unmatched_names.csv: Names that appeared in answers but were not on the tracked list, unfiltered, with answer counts.
- status-decisions.json: Decisions on names in transition (mergers, renames), with the source used.
- trials.csv: One row per answer: engine, question, run, names found, citations, measurement time.
- raw_responses.jsonl: The full text of every answer and Google AI Overview, with its citations, one JSON record per line.

SHA-256 checksums:
a5f3672a5665ac1397582d61e198ce7c329cdf2e84fc1426a02c298b6b267083  summary.csv
36a52b13b7cc80df5d50417c7af6af07ddc47387f3c67df3c9958eb2e3976555  per_engine.csv
d40070b3f0cdaf4cc02144220a1217b1fe75b75a713f60922f96107a69d93994  significance.csv
62532cd1c1842140d61b737c59c3748eeb31889d8963417990add0c82ae0bad2  sources.csv
79ea8a0dbc43456afc040280afabbd342241bac48b751ac5c30f7d03e5e19785  entity_rollups.csv
256ebb019ec56effac9076ebfcd54fd09bbd19add87f52720ac65ac952c4504e  unmatched_names.csv
e13f85182c28305550afcd6207bc2f60e28e83add063082eb1bd4408f94b439b  status-decisions.json
98f8e052dbb898b97aab981d812fd00b79fbc09d97823fc194d86f564bcad3da  trials.csv
1850e879f337f891f02370c69cceb271bcc1880edca0b404cffc329c23b0f15d  raw_responses.jsonl

Questions or corrections: info@5wpr.com
