Grey's Anatomy: Season 20

Season overview

Role: Meticulous television and film archivist.
Task: Produce a JSON object for "Grey's Anatomy" Season 20.
Constraints:
Use ONLY provided SYNOPSIS and SOURCES.
No invented/guessed titles, names, dates, etc.
No markdown, no asterisks, no headings, no bullet points in the text.
Output: Valid JSON only.
JSON Keys: overview (160-220 words), primer (array of exactly 4 concise bullet points).
Input Content:
Synopsis: Meredith resigns from Fox Foundation, publishes research publicly, departs Grey Sloan, discusses future with Nick. Catherine fires Teddy for funding Meredith's Alzheimer's research. Winston has relationship doubts due to Maggie. Arizona Robbins returns to work with Miranda Bailey and Jo Wilson.
Sources: General info about the show (medical drama, doctors at Grey Sloan Memorial Hospital, created by Shonda Rhimes, follows Meredith Grey).
Overview:
The twentieth season of Grey's Anatomy continues the personal and professional lives of the doctors at Grey Sloan Memorial Hospital. Following an ultimatum from Catherine, Meredith decides to resign from the Fox Foundation. Rather than adhering to hospital politics, she chooses to publish her research publicly to prioritize its potential to save lives. This decision leads to her departure from Grey Sloan Memorial Hospital as she discusses a future with Nick. In a retaliatory move, Catherine fires Teddy for her role in secretly funding Meredith's Alzheimer's research. Meanwhile, Winston experiences relationship doubts after Maggie repeatedly cancels plans for his visits to Chicago. Additionally, Arizona Robbins returns to Grey Sloan Memorial Hospital, where she works alongside Miranda Bailey and Jo Wilson. The series remains a medical drama centered on the staff navigating the complexities of life inside and outside the hospital.
Word Count Check (Overview):
"The twentieth season of Grey's Anatomy continues the personal and professional lives of the doctors at Grey Sloan Memorial Hospital. Following an ultimatum from Catherine, Meredith decides to resign from the Fox Foundation. Rather than adhering to hospital politics, she chooses to publish her research publicly to prioritize its potential to save lives. This decision leads to her departure from Grey Sloan Memorial Hospital as she discusses a future with Nick. In a retaliatory move, Catherine fires Teddy for her role in secretly funding Meredith's Alzheimer's research. Meanwhile, Winston experiences relationship doubts after Maggie repeatedly cancels plans for his visits to Chicago. Additionally, Arizona Robbins returns to Grey Sloan Memorial Hospital, where she works alongside Miranda Bailey and Jo Wilson. The series remains a medical drama centered on the staff navigating the complexities of life inside and outside the hospital."
Count: ~155 words. I need to expand slightly to hit