Recently image rejected couple of times as RF for following reason:

Metadata - Commercial Requirements: Contextual metadata such as titles, descriptions, keywords, categories, and locations must be accurate, descriptive, and relevant to the subject matter and must be in English. They should not contain any potentially objectionable or offensive language, as well as any trademark issues (brand/company name) or sensitive information. Please remove special characters or repetitive words/phrases and check spelling/grammar errors.

Image is attached.  It's not what's in the image, it's metadata

Title

Famous Olympic Games Stadium Exterior on Montjuic Hill in Barcelona, Spain also Football Club Sports Arena Venue

Keywords:

amphitheater, architecture, arena, barcelona, blue, building, catalan, catalonia, championship, city, classical, culture, day, europe, european, exterior, facade, famous, football, historic, landmark, mansion, modern, montjuic, olympic, olympics, outside, park, popular, sky, skyline, soccer, spain, spanish, sport, sports, stadium, sunny, theater, theatre, travel, urban, venue, wall

For the life of it I can't find the problem keyword. Can you? Only one I can think of is "olympic".

Olympic, olympics are trademarked by the IOC so you should remove them.

Apart from that, maybe you could add in amphitheatre seeing as you have both UK and American spellings of theatre/theater.

ah, thanks!  I suspected Olympics but was not aware of IOC Trademark.  This was probably automatically picked by AI

Olympic, olympics are trademarked by the IOC so you should remove them.

Apart from that, maybe you could add in amphitheatre seeing as you have both UK and American spellings of theatre/theater.

I've had pix taken in Olympic national Park (a public domain name) rejected for this reason (& our state capital is Olympia!)

a trademark only covers use that infringes that particular use (eg 2 different  uses of trademarked 'Apple' are accepted), but IOC managed to trademark a word that was millennia old and bludgeons anyone trying to use the word in another sense.

otoh SS has  300K+ olympic images! so likely a big difference in reviewers