How did Sumerian indicate plural nouns?

In the Sumerian language, plural nouns were indicated through two primary methods:

• Suffixes: Plurality could be marked by adding specific suffixes to the noun, including -me (or -me + -esh), -hia, and -ene.1
• Reduplication: Plurality could also be expressed by repeating the noun, such as kur + kur to mean "mountains."1