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