All parallelograms are polygons; not all polygons are parallelagrams nostr:nevent1qqsp5lps95rfuhwnxejnar5lz8lymdkzs83xr9f2ltr0lrl5t83ze3gpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhsyg9a0ccsycu70j35nme8ugssmaksyevwqxdz9tr9jww9uxkueewm3qpsgqqqqqqs94m5y8