#confirmation  information that confirms or verifies
  supertype:  info__information  a message received and understood that reduces the recipient's uncertainty
  subtype:  reinforcement__reenforcement  information that makes more forcible or convincing; "his gestures provided eloquent reinforcement for his complaints"
  subtype:  corroboration__documentation__certification  confirmation that some fact or statement is true

No statement uses or specializes confirmation; click here to add one.