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

Example Input: Passage: Physical properties include color, density, hardness, and melting and boiling points. Answer: physical
Example Output: Hardness, density, color, and melting and boiling points are all considered what types of properties?

Example Input: Passage: Figure 5.3 This phospholipid molecule is composed of a hydrophilic head and two hydrophobic tails. The hydrophilic head group consists of a phosphate-containing group attached to a glycerol molecule. The hydrophobic tails, each containing either a saturated or an unsaturated fatty acid, are long hydrocarbon chains. Answer: hydrophillic head , and hydrophobic tails
Example Output: What two things are a phospholipid molecules composed of?

Example Input: Passage: Urine is a liquid that is formed by the kidneys when they filter wastes from the blood. Urine contains mostly water, but it also contains salts and nitrogen-containing molecules. The amount of urine released from the body depends on many things. Some of these include the amount of fluid and food a person consumes and how much fluid they have lost from sweating and breathing. Urine ranges from colorless to dark yellow but is usually a pale yellow color. Light yellow urine contains mostly water. The darker the urine, the less water it contains. Answer: the kidneys
Example Output:
Where is urine formed in the body?