question: If Milo's engine is running hot, how will adding oil affect friction?
choices.text: increase reduce
choices.label: A B
para: To reduce friction, oil is added to the engine.
para_anno.effect_prop: friction
para_anno.cause_dir_str: added
para_anno.effect_dir_str: reduce
para_anno.cause_dir_sign: MORE
para_anno.effect_dir_sign: LESS
para_anno.cause_prop: oil
question_anno.more_effect_dir: increase
question_anno.less_effect_dir: reduce
question_anno.more_effect_prop: friction
question_anno.less_effect_prop: friction
question_anno.less_cause_dir: friction