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

                                                                    mc-escher-day-and-night-puzzle-1000-teile_55964-1_fs

                                                       https://www.puzzle-online.de/puzzelman-mc-escher-day-and-night-puzzle-1000-teile.p55964.html

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                                                                                 https://www.dict.cc/?s=pluriformity - https://en.wiktionary.org/wiki/plurality

https://www.grammarly.com/ ?utm_source=youtube&utm_phase=other&gclid=EAIaIQobChMI8rmUiNeS4QIVFb9RCh3uMAX_EAEYASAAEgLRwPD_BwE&utm_content=morethangramma r58s&utm_campaign=superbroadmorethangrammar58s-tva-t2&utm_medium=cpc