ADJECTIVE civilizations PAST TENSE VERB around sources of NOUN like PLURAL NOUN. When rivers VERB they deposit NOUN that enriches the NOUN for farming. The rich soil allows the NOUN to produce excess NOUN. When ancient societies had ADJECTIVE food, they developed specialized NOUN, technology, PLURAL NOUN, and a ADVERB language. The food and specialized goods they PLURAL VERB allowed ancient NOUN to trade with other PLURAL NOUN and become wealthy. All of this happened because they had excess NOUN!