thresh P-value %words %seq Nwords Nseq total_words total_seq 8.8604 1.0e-05 5.9% 4.7% 2 2 34 43 8.0643 5.0e-05 8.8% 7.0% 3 3 34 43 7.7088 0.0001 14.7% 11.6% 5 5 34 43 6.4506 0.0005 50.0% 37.2% 17 16 34 43 5.8749 0.001 58.8% 46.5% 20 20 34 43