<e1>Acne</e1> is caused by <e2>oily skin</e2> and often has black or whiteheads, inflamed sores, and infected sores along with scars.
Acne is caused by
Acne is caused by oily skin and often has black or whiteheads, inflamed sores, and infected sores along with scars.
<triplet> Acne <subject> oily skin <object> Cause-Effect(e2,e1)