[Q]: Determine the topic of the passage. "The liver produces urea in the urea cycle as a waste product of the digestion of protein ." Topic:
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[A]: Blood urea nitrogen

[Q]: Determine the topic of the passage. "Nassau" Topic:
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[A]: List of cities in the Bahamas

[Q]: Determine the topic of the passage. "Every new Lodge must be warranted or chartered by a Grand Lodge, but is subject to its direction only in enforcing the published Constitution of the jurisdiction." Topic:
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[A]: Masonic Lodge

[Q]: Determine the topic of the passage. "Elizabeth Ann Bloomer Warren "Betty" Ford (April 8, 1918 July 8, 2011), was First Lady of the United States from 1974 to 1977 during the presidency of her husband Gerald Ford ." Topic:
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[A]:
Betty Ford