... (“share what youmake”), users post instructions for making a widevariety of objects ranging from bed frames to “TheStirling Engine, absorb energy from candles, coffee, and more!1” There are ... foolproof, or appropriate for allusers. For instance, in the case of recipes, a user missing a certain ingredient at home might wonderwhether it can be safely omitted; a user who wantsto get a slightly ... daunting1http://www.instructables.com/id/The-Sterling-Engine-absorb-energy -from- candles-c545task for a user. Instead, we would like to automat-ically identify refinements in reviews, summarizethem, and either create an annotated version...