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The Inca ruler required a third , and a third was set aside in a kind of welfare system for those unable to work . Huge storehouses were filled with food for times of need . Each peasant also worked for the Inca ruler a number of days per month on public works projects , a requirement known as the mita . For example , peasants constructed rope bridges made of grass to span the mountains above fast-flowing icy rivers . In return , the lord provided laws , protection , and relief in times of famine .
Please check all the words that can be used instead of the target word in the same context. Note that the morphology of the target (third person singular, past tense etc.) is considered to be applied to the candidate automatically in the process of paraphrasing.