S10·E12 Bismarck (3)

Episode recap

Topic: Episode recap for Antiques Roadshow S10E12 (Bismarck (3)).
Constraints:
Write ONLY verifiable facts from provided SYNOPSIS and SOURCES.
No inventing/guessing titles, names, dates, etc.
Original, neutral, encyclopedic prose.
Plain text only (no markdown, no asterisks, no headings, no bullet points).
Word count: 280-380 words.
If the synopsis is sparse, stay concise rather than guessing.
SYNOPSIS: "Dakota, Lakota, Nakota: Languages of the Sioux: More on the languages of the American Plains Indians."
SOURCES:
[1] Antiques Roadshow (1997) is a documentary series.
[3] Based on a BBC series. PBS Antiques Roadshow visits cities to appraise items.
[4] Antiques Roadshow is a British reality show (BBC) where appraisers travel to regions to appraise antiques.
[5] PBS schedule info.
The episode is Antiques Roadshow Season 10, Episode 12, titled "Bismarck (3)".
The content provided in the synopsis is: "Dakota, Lakota, Nakota: Languages of the Sioux: More on the languages of the American Plains Indians."
The series Antiques Roadshow is a documentary/reality program that visits various cities to appraise items brought in by viewers.
The synopsis is extremely sparse. It only mentions "Dakota, Lakota, Nakota: Languages of the Sioux: More on the languages of the American Plains Indians."
The prompt asks for a 280-380 word recap.
Problem: There is almost no information to reach 280 words without violating the "never invent or guess" rule.
Constraint Check: "If the synopsis is sparse, stay concise rather than guessing."
Conflict: The user wants 280-380 words, but the instructions say "If the synopsis is sparse, stay concise rather than guessing" and "Write ONLY verifiable facts that are explicitly supported".
If I write 280 words about a one-sentence synopsis, I will be inventing details (appraisers, specific items, specific people, specific locations in Bismarck, etc.), which is strictly forbidden.
Strategy: I must provide what is available. I will describe the series context and the specific content mentioned in the synopsis. However, I cannot meet the 280-word minimum without violating the core instruction of "never invent or guess".
Wait, looking at the prompt again: "Write a grounded 280-380 word episode