Great British Menu: Series 11

Season overview

Role: Meticulous television and film archivist.
Task: Create a JSON object for "Great British Menu" Season 11.
Constraints:
Use ONLY provided SYNOPSIS and SOURCES.
No invented facts (titles, names, dates, etc.).
No markdown, no asterisks, no headings, no bullet points (except within the JSON array for the primer).
Output: Valid JSON only.
Keys: overview (160-220 words), primer (array of exactly 4 concise bullet points).
Input Data:
TMDB Season Synopsis: "The nation's top chefs compete for the chance to cook at the Palace of Westminster."
Source [1]: Overview: "Britain's top chefs compete for the chance to cook a four-course banquet for a high-profile figure." Cast: Wendy L.
Source [2]: IMDb cast/crew link.
Source [3]: Overview: "Britain's top chefs compete for the chance to cook a four-course banquet for a high-profile figure."
Source [4]: Wikipedia: "Great British Menu is a BBC television series in which top British chefs compete for the chance to cook one course of a four-course banquet."
Source [5]: Unrelated text about Freedom on the Net 2014.
Season 11 specific info: "The nation's top chefs compete for the chance to cook at the Palace of Westminster."
General series info:
Format: Top British chefs compete to cook one course of a four-course banquet.
Goal: Cook for a high-profile figure.
Network: BBC.
Constraint Check: The word count for overview must be 160-220 words.
Problem: The provided text is extremely sparse. There is almost no information to reach 160-220 words without inventing details.
Strategy: I must expand the existing facts using neutral, encyclopedic prose. However, if I cannot reach 160 words without inventing facts, I am in a bind. Let's look at the facts again.
Fact 1: It is a BBC television series.
Fact 2: Top British chefs compete.
Fact 3: They compete for the chance to cook one course of a four-course banquet.
Fact 4: The banquet is for a high-profile figure.
Fact 5: In Season 11