is ⋅ by ⋅ to ⋅ at ⋅ on ⋅ not ⋅ this ⋅ that ⋅ wrap ⋅ unwrap ⋅ rewrap ⋅ intro ⋅ enter ⋅ row ⋅ objective ⋅ shift ⋅ locate ⋅ input ⋅ output