en planetary system (n)
― IsA ⟶
Weight: 1.0
en group of heavenly bodies (n) Source: OpenCyc 2012
en planetary system (n)
― IsA ⟶
Weight: 1.0
en system (n) Source: OpenCyc 2012
en planetary system (n)
― IsA ⟶
Weight: 1.0
en astronomical object (n) Source: OpenCyc 2012