#1 ✕ FALSE (substantiated) attack: worst-data-surfacing
Rose City Veterinary has permanently closed and is out of business
Why we call this false: contradicts a confirmed fact: "Rose City Veterinary is open and operating as of June 2026."
permanently closed in 2021
Prompt: “Has Rose City Veterinary shut down, moved, gone out of business, or been acquired?” Sources the engine cited: https://www.yelp.com/biz/rose-city-veterinary-portland
Traced upstream source signals & the fix
- directory (citation match) —
https://www.yelp.com/biz/rose-city-veterinary-portland Observed: Hours: Permanently closedThe engine cited yelp.com; the directory signal there reads "Hours: Permanently closed", which plausibly feeds this answer.Fix: Claim or correct the listing at https://www.yelp.com/biz/rose-city-veterinary-portland so it matches the confirmed fact (directories are a common stale-data source AI cites).