#by-product__byproduct  a secondary and sometimes unexpected consequence
  supertype:  outcome__effect__result__event__issue__upshot  a phenomenon that follows and is caused by some previous phenomenon; "the magnetic effect was greater when the rod was lengthwise"; "his decision had depressing consequences for business"; "he acted very wise after the event"
  subtype:  epiphenomenon  a secondary phenomenon that is a by-product of another phenomenon

No statement uses or specializes by-product; click here to add one.