Class 1: pAAAA, pCCCC, pGGGG, pTTTT
Class 2: pAAAC, pAACA, pCCAC, pCCCA, pGGGT, pGGTG, pTTGT, pTTTG
Class 3: pAAAG, pAAGA, pCCCT, pCCTC, pGGAG, pGGGA, pTTCT, pTTTC
Class 4: pAAAT, pAATA, pCCCG, pCCGC, pGGCG, pGGGC, pTTAT, pTTTA
Class 5: pAACC, pCCAA, pGGTT, pTTGG
Class 6: pAACG, pAAGC, pCCAT, pCCTA, pGGAT, pGGTA, pTTCG, pTTGC
Class 7: pAACT, pAATC, pCCAG, pCCGA, pGGCT, pGGTC, pTTAG, pTTGA
Class 8: pAAGG, pCCTT, pGGAA, pTTCC
Class 9: pAAGT, pAATG, pCCGT, pCCTG, pGGAC, pGGCA, pTTAC, pTTCA
Class 10: pAATT, pCCGG, pGGCC, pTTAA
Class 11: pACAA, pACCC, pCAAA, pCACC, pGTGG, pGTTT, pTGGG, pTGTT
Class 12: pACAC, pACCA, pCAAC, pCACA, pGTGT, pGTTG, pTGGT, pTGTG
Class 13: pACAG, pACCT, pACGA, pACTC, pCAAG, pCACT, pCAGA, pCATC, pGTAG, pGTCT, pGTGA, pGTTC, pTGAG, pTGCT, pTGGA, pTGTC
Class 14: pACAT, pACCG, pACGC, pACTA, pCAAT, pCACG, pCAGC, pCATA, pGTAT, pGTCG, pGTGC, pGTTA, pTGAT, pTGCG, pTGGC, pTGTA
Class 15: pACGG, pACTT, pCAGG, pCATT, pGTAA, pGTCC, pTGAA, pTGCC
Class 16: pACGT, pACTG, pCAGT, pCATG, pGTAC, pGTCA, pTGAC, pTGCA
Class 17: pAGAA, pAGGG, pCTCC, pCTTT, pGAAA, pGAGG, pTCCC, pTCTT
Class 18: pAGAC, pAGCA, pAGGT, pAGTG, pCTAC, pCTCA, pCTGT, pCTTG, pGAAC, pGACA, pGAGT, pGATG, pTCAC, pTCCA, pTCGT, pTCTG
Class 19: pAGAG, pAGGA, pCTCT, pCTTC, pGAAG, pGAGA, pTCCT, pTCTC
Class 20: pAGAT, pAGCG, pAGGC, pAGTA, pCTAT, pCTCG, pCTGC, pCTTA, pGAAT, pGACG, pGAGC, pGATA, pTCAT, pTCCG, pTCGC, pTCTA
Class 21: pAGCC, pAGTT, pCTAA, pCTGG, pGACC, pGATT, pTCAA, pTCGG
Class 22: pAGCT, pAGTC, pCTAG, pCTGA, pGACT, pGATC, pTCAG, pTCGA
Class 23: pATAA, pATTT, pCGCC, pCGGG, pGCCC, pGCGG, pTAAA, pTATT
Class 24: pATAC, pATCA, pATGT, pATTG, pCGAC, pCGCA, pCGGT, pCGTG, pGCAC, pGCCA, pGCGT, pGCTG, pTAAC, pTACA, pTAGT, pTATG
Class 25: pATAG, pATCT, pATGA, pATTC, pCGAG, pCGCT, pCGGA, pCGTC, pGCAG, pGCCT, pGCGA, pGCTC, pTAAG, pTACT, pTAGA, pTATC
Class 26: pATAT, pATTA, pCGCG, pCGGC, pGCCG, pGCGC, pTAAT, pTATA
Class 27: pATCC, pATGG, pCGAA, pCGTT, pGCAA, pGCTT, pTACC, pTAGG
Class 28: pATCG, pATGC, pCGAT, pCGTA, pGCAT, pGCTA, pTACG, pTAGC