YELLOW Vest protest has symbolizes Q's color….

https://en.wikipedia.org/wiki/International_maritime_signal_flags

>>4326185

>>4326200

"JACK" is also JFK's grandson (Jack Flag)

https://people.com/politics/how-jfks-only-grandson-stepped-into-the-spotlight-this-week-and-honored-his-familys-legacy/

https://www.thelist.com/39352/caroline-kennedys-son-looks-exactly-like-jfk-jr/