4. The apparatus of claim 1 , wherein the instructions, when executed by the at least one device processor, cause the at least one device processor to: in the first instance, disambiguate the input data as the shape-writing input based at least on an observed length of the input data.
4. The apparatus of claim 1 , wherein the instructions, when executed by the at least one device processor, cause the at least one device processor to: in the first instance, disambiguate the input data as the shape-writing input based at least on an observed length of the input data. 5. The apparatus of claim 4 , wherein the instructions, when executed by the at least one device processor, cause the at least one device processor to: in the second instance, disambiguate the input data as the radial entry input based at least on the observed length of the input data.