Input: Article: Evidence suggests that blast furnaces, that convert raw iron ore into pig iron, which can be remelted in a cupola furnace to produce cast iron by means of a cold blast and hot blast, were operational in China by the late Spring and Autumn period (722481 BC). The bloomery was nonexistent in ancient China; however, the Han-era Chinese produced wrought iron by injecting excess oxygen into a furnace and causing decarburization. Cast iron and pig iron could be converted into wrought iron and steel using a fining process.

Now answer this question: What can iron ore be converted into in a blast furnace?

Output: pig iron

Input: Article: A popular trend in this era was remixing dance music hits into adult contemporary ballads, especially in the US, (for example, the "Candlelight Mix" versions of "Heaven" by DJ Sammy, "Listen To Your Heart" by D.H.T., and "Everytime We Touch" by Cascada). Adult contemporary has long characterized itself as family-friendly, but edited versions of "Perfect" by P!nk and "Forget You" by Cee Lo Green showed up in the format in 2011.

Now answer this question: What artist performed the song "Forget You"?

Output: Cee Lo Green

Input: Article: Different pieces of wood cut from a large tree may differ decidedly, particularly if the tree is big and mature. In some trees, the wood laid on late in the life of a tree is softer, lighter, weaker, and more even-textured than that produced earlier, but in other trees, the reverse applies. This may or may not correspond to heartwood and sapwood. In a large log the sapwood, because of the time in the life of the tree when it was grown, may be inferior in hardness, strength, and toughness to equally sound heartwood from the same log. In a smaller tree, the reverse may be true.

Now answer this question: If you need really hard, strong wood from a small tree, would it likely be better to use the heartwood or sapwood?

Output:
sapwood