question: The sun exerts gravitational force on all the planets, which has a lower gravitational force
choices.text: earth mars
choices.label: A B
para: The further objects are away from each other, the smaller the gravitational force.
para_anno.effect_prop: gravitational force
para_anno.cause_dir_str: further
para_anno.effect_dir_str: smaller
para_anno.cause_dir_sign: MORE
para_anno.effect_dir_sign: LESS
para_anno.cause_prop: distance
question_anno.less_effect_dir: lower
question_anno.less_cause_prop: Earth
question_anno.less_effect_prop: gravitational force
question_anno.less_cause_dir: gravitational force