U1N1K5N1O1T1
10 points
UNKNOT is validvalid
to undo a knot in [v UNKNOTS, UNKNOTTED, UNKNOTTING]
to undo a knot in [v UNKNOTTED, UNKNOTTING, UNKNOTS]
to undo a knot in [v UNKNOTS, UNKNOTTED, UNKNOTTING]
to undo a knot in [v UNKNOTTED, UNKNOTTING, UNKNOTS]