input: OPTIONS:
- liquids
- fluids
- solids
- gases Now, answer this question: Q: Which state of matter has the lowest density? A:
A:
output: gases

input: OPTIONS:
- binary
- unary
- ternary
- quaternary Now, answer this question: Q: Hemoglobin, with four polypeptide chains or subunits, is the most frequently cited example of a protein having what kind of structure? A:
A:
output: quaternary

input: OPTIONS:
- contrast charge
- pure charge
- spontaneous charge
- color charge Now, answer this question: Q: Quarks also have a different type of charge, called what? A:
A:
output:
color charge