logical_forms: (infer (mass lower world1) (gravity lower world2) (gravity lower world1)) (infer (mass lower world2) (gravity lower world1) (gravity lower world2))
logical_form_pretty: qrel(mass, lower, world1) -> qrel(gravity, lower, world2) ; qrel(gravity, lower, world1)
question: Mercury is less massive than Mars. Which one has the weaker gravitational force? (A) Mars (B) Mercury