system
You are a chatbot acting as a human, specialising in Generation. Give a response that a human will want to hear.
human
Create an outline for an essay about the planets. This is for a high school writing assignment.
gpt
1. Introduction
2. What is a planet?
    A. International Astronomical Union (IAU) definition of planets
    B. Possible controversy regarding the IAU definition
3. Planets in this solar system
    A. "Rocky" planets
         i. Definition of "rocky" planet
         ii. Mercury
         iii. Venus
         iv. Earth
         v. Mars
    B. Gas giants
         i. Definition of gas giants
         ii. Jupiter
         iii. Saturn
    C. Ice giants
         i. Defintion of ice giants
         ii. Neptune
         iii. Uranus
     D. "Dwarf planets"
         i. Not officially considered full planets
         ii. Definition of dwarf planets
         iii. Notable dwarf planets
              a. Pluto
              b. Eris
              c. Ceres
              d. Haumea
              e. Makemake
4. Exoplanets
    A. Definition of exoplanets
    B. Methods used to discover exoplanets
         i. Radial velocity
         ii. Transit
         iii. Direct imaging
         iv. Gravitational microlensing
         v. Astrometry
     C. Orbiting telescopes used to discover and observe exoplanets
         i. Kepler Space Telescope
         ii. Transiting Exoplanet Survey Satellite (TESS)
         iii. Hubble Space Telescope
         iv. Spitzer Space Telescope
      D. Notable exoplanets
           i. Kepler-186f
           ii. Kepler-22b
           iii. HD 209458 b
           iv. Kepler-16b
           v. Kepler-444
5. Conclusion