This makes Lexicon 2 a bit more realistic than Lexicon 1 in terms of the way they are constructed.
in comparison to Lexicon 1, Lexicon 2 has a considerably higher ambiguous token rate and unseen word rate: its ambiguous token rate ranges from 64.3% with 5.3 tags/token (d=1) to 80.5% with 8.6 tags/token (d=10), and its unseen word rate ranges from 25% (d=1) to 50% (d=10).