What is the question to: "The kilobar, which is to say 1000 grams in mass, is the bar that is more manageable and is used extensively for trading and investment."? The topic is Gold bar.
Ans: "how much does a gold bar weigh?"

What is the question to: "The TI-82 was designed in 1993 as a stripped down, more user friendly version of the TI-85 , and as a replacement for the TI-81 ."? The topic is TI-82.
Ans: "what is a ti 82??"

What is the question to: "Halley's Comet last appeared in the inner Solar System in 1986 and will next appear in mid-2061."? The topic is Halley's Comet.
Ans: "when is halley's comet next?"

What is the question to: "Erie is a Statutory Town in Boulder and Weld counties in the U.S. state of Colorado ."? The topic is Erie, Colorado.
Ans: "what county is erie colorado?"