1.   ...a knotted rope.

2.   Both have similar features, like knotted ropes for children to swing on.

3.   A description of knotted ropes leads to a discussion of topology.

4.   Inside the bag, too, were knotted ropes indicating that he had been tied up when he died.

5.   It was a fact that Buck of St. Anselm College was eager to point out the other day at a dining room table cluttered with knotted rope.

6.   Resembling either interlocking puzzle pieces or knotted rope, they were more beautiful this time around.