gender
— A teen searches Craigslist for a bike with a diagonal bar that defies gender categories, settling on one labeled 'women's' despite their preferences.
— On planet Matia 3, where girls are expected to raise families, Retsina attempts her fourth and final chance to become a Space Cadet, competing against boys in a grueling test.
— In 1940s America, a girl defies gender expectations to join the local baseball league, facing down the hostile coach and proving herself with a crucial home run.