question: Which planet does the sun have the most gravity effect on?
choices.text: Mars Mercury
choices.label: A B
para: The Moon has a greater effect on the tides because, although it is much smaller than the Sun, it is much closer.
para_anno.effect_prop: gravitational force
para_anno.cause_dir_str: closer
para_anno.effect_dir_str: greater
para_anno.cause_dir_sign: LESS
para_anno.effect_dir_sign: MORE
para_anno.cause_prop: distance
question_anno.more_effect_dir: most
question_anno.less_cause_prop: Mercury
question_anno.more_effect_prop: gravity effect