input: OPTIONS:
- similar
- neutral
- positive
- negative Now, answer this question: Q: Cations are attracted to anions, which are ions with what charge? A:
A:
output: negative

input: OPTIONS:
- diameter
- Lenght
- Width
- curve Now, answer this question: Q: What does a keratometer measure in the cornea? A:
A:
output: curve

input: OPTIONS:
- cities
- tribes
- nobles
- kingdoms Now, answer this question: Q: All living organisms are classified into one of six broad categories called what? A:
A:
output:
kingdoms