Kamen Rider: Den-O

Season overview

Task: Write a JSON object for "Kamen Rider" Season 17.
Keys: overview (160-220 words), primer (array of exactly 4 concise bullet points).
Constraints: Use ONLY provided SYNOPSIS and SOURCES. No invented facts. No markdown. No asterisks. No headings. No bullet points (within the prose, though the primer is an array). Output valid JSON only.
Target: "Kamen Rider" Season 17.
SYNOPSIS: "One day out of the blue, a faint-hearted boy named Ryōtarō Nogami picks up a pass to the time-travelling train, Den Liner. Ryōtarō then becomes Kamen Rider Den-O to fight the invaders from the future, Imagin."
SOURCE [1]: Mentions Takeshi Hongo, motorcycle racing, but this refers to "Kamen Rider (1971)".
SOURCE [2]: Mentions "Kamen Rider (1971)" and a rating.
The synopsis provided is clearly for Kamen Rider Den-O, but the prompt asks for "Kamen Rider" Season 17.
The synopsis says: "Ryōtarō Nogami picks up a pass to the time-travelling train, Den Liner. Ryōtarō then becomes Kamen Rider Den-O to fight the invaders from the future, Imagin."
Word count requirement for overview: 160-220 words.
Wait, the synopsis is very short: "One day out of the blue, a faint-hearted boy named Ryōtarō Nogami picks up a pass to the time-travelling train, Den Liner. Ryōtarō then becomes Kamen Rider Den-O to fight the invaders from the future, Imagin."
That is only 38 words.
The prompt requires 160-220 words for the overview.
Constraint check: "You write ONLY verifiable facts that are explicitly supported by the provided SYNOPSIS and SOURCES. You never invent or guess... If a detail is not in the provided material, you omit it rather than guess."
If I cannot invent details, and the source only provides 38 words of plot, I cannot reach the 160-220 word count without violating the "never invent or guess" rule.
However, usually, in these LLM tasks, if the word count is a hard constraint and the source is short, I must try to expand using the provided facts without adding new facts. But expanding 38 words to 1