TASK DEFINITION: Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
PROBLEM: Resonance is the term for the use of two or more lewis structures to represent the covalent bonding in a molecule.

SOLUTION: What is the term for the use of two or more lewis structures to represent the covalent bonding in a molecule?

PROBLEM: Compounds containing an atom of nitrogen element, bonded in a hydrocarbon framework, are classified as amines.

SOLUTION: Compounds containing an atom of what element, bonded in a hydrocarbon framework, are classified as amines?

PROBLEM: Esophagus, stomach, intestines are the structures that make up the digestive system in the human body.

SOLUTION:
Which example best shows structures that make up the digestive system in the human body?