Firstly, the words in the synsets {complete, finish} are encoded with 0 and 1 with base 2, and the words in the synset {labor, project, task, undertaking} are encoded with 0, 1, 2, and 3 with base 4.
the combinations of the substitutions yield the two-digit mixed-radix numbers from 0 2 0 4 to 1 2 3 4 , which are equal to the decimal numbers 0 to 7.