Problem: Does "Perhaps the biggest sustainability problem in Tucson, with its high desert climate, is potable water supply." answer the question "How is most of Tucson's water used?"

A: no

Problem: Does "The Acta Constitutiva de la Federacion of January 31, 1824, and the Federal Constitution of October 4, 1824, fixed the political and administrative organization of the United Mexican States after the Mexican War of Independence." answer the question "When was the federal constitution signed?"

A: yes

Problem: Does "After the Civil War began, Governor Zebulon Baird Vance ordered the construction of breastworks around the city as protection from Union troops." answer the question "What did the governor order constructed?"

A:
yes