Given a scientific passage and an answer, generate a question for the given answer.

Example Input: Passage: Figure 20.13 Diabetes is a disease characterized by high concentrations of glucose in the blood. Treating diabetes involves making lifestyle changes, monitoring blood-sugar levels, and sometimes insulin injections. (credit: "Blausen Medical Communications"/Wikimedia Commons). Answer: diabetes
Example Output: What is a disease characterized by high concentrations of glucose in the blood?

Example Input: Passage: Bond lengths are intermediate between covalent single bonds and covalent double bonds. Answer: covalent double bonds
Example Output: Bond lengths are intermediate between covalent single bonds and what?

Example Input: Passage: Sulfate minerals contain sulfur atoms bonded to oxygen atoms. Like halides, they can form in places where salt water evaporates. Many minerals belong in the sulfate group, but there are only a few common sulfate minerals. Gypsum is a common sulfate mineral that contains calcium, sulfate, and water. Gypsum is found in various forms. For example, it can be pink and look like it has flower petals. However, it can also grow into very large white crystals. Gypsum crystals that are 11 meters long have been found. That is about as long as a school bus! Gypsum also forms at the Mammoth Hot Springs in Yellowstone National Park, shown in Figure below . Answer: oxygen and sulfur
Example Output:
What two types of atoms bond to form sulfate minerals?