Complex sentence: Carrick bend loop or Carrick loop is a knot used to make a reliable and stable loop at the end of a rope formed by the tail turned around and attached to the main part using a carrick bend.
Split into simpler sentences: Carrick bend loop or Carrick loop is a knot used to make a reliable and stable loop at the end of a rope. It is formed by the rope end turned around forming a loop and attaching to the main part using a carrick bend.