Because Clever Carlos Can Constantly Calculate Exact Fractions, Just Like Little Mister Math, Nobody Really Saw Simple Simon Say, "Sixty, Six Times Ten."

Explanation

This is a rhyme to help you remember all 23 provinces of Argentina, in alphabetical order. It doesn't encode the province names themselves - since they're already alphabetical, you don't need help with the order. Instead, it works as a counting rhyme: the sentence has exactly 23 words, one per province, so if you can recite the whole thing you know you haven't forgotten one.

• Buenos Aires, Catamarca, Chaco, Chubut, Córdoba, Corrientes, Entre Rios, Formosa
• Jujuy, La Pampa, La Rioja, Mendoza, Misiones
• Neuquén, Rio Negro, Salta, San Juan, San Luis, Santa Cruz, Santa Fe, Santiago del Estero, Tierra del Fuego, Tucumán