From its discovery in 1930 until 2006, what was considered to be the Solar System's ninth planet?
from its discovery in 1930 until 2006, what was considered to be the solar system's ninth planet
FreebaseQA-train-17285.P0 FreebaseQA-train-17285.P1
solar system solar system
solar system solar system
m.06p5g m.06p5g
astronomy.star_system.planetary_system astronomy.star_system.plutoids
m.0c3qy
pluto
m.0c3qy
pluto