From a DPT: Extend the Tag twice; Single Hinge; Extend the Tag twice. Take facing command as directed.
Turn The Corner 1 By 1, 1 By 2, 2 By 1 -- The first number indicates that dancers Extend that number of times then Hinge; the second number indicates the number of Extends to be done after the Hinge. Thus, from a 1/4 tag one could call Turn the Corner 1 by 1 or 1 by 2. Turn the Corner with no modifying numbers is the same as Turn the Corner 2 by 2, i.e. the default condition is understood to be 2 by 2 and must start from a DPT formation.