I cannot recall all the specific patterns I have encountered that are basically impossible to write, some very similar in that they have a serious but also innocuous or figure of speech meaning; one I do recall is {color}{sex}, i.e., “white woman” or “blank woman”.

Please try it yourself and let me know if you do not have that experience, because that would be even more interesting.

Note that Apple/iOS will not just make it impossible to write them in that manner without typing it out by individual character, it will even alter the prior word e.g., white or black, once you try to write woman.

It seems the Apple thought police do not have a problem with European woman or African woman though, so maybe that is the way Apple Inc decrees its sub-human users to speak. Because what are we if corporations like Apple (with others being far greater offenders) declared that you do not in fact have the UN Human Right to free expression? We are in fact sub-humans that are not worthy of the human right to free expression, based on the actions of companies like Apple, Google, Facebook, Reddit, etc. who deprive people of their free expression, often in collusion with governments.