+ * log - + SCORE.INTRA.VDW SCORE.INTRA.VDW.0 0.9913
    exp * SCORE.INTER.AROM.narom
        * exp SCORE.INTER.POLAR.nhbd
          LIG_POS_CHG
- * 684
    if SCORE.INTER.REPUL.nhba
       LIG_NEG_CHG
       / SCORE.INTER.VDW.nrep
           SITE_PERC_AROMATOMS
  if + - SCORE.INTER.POLAR.nhbd
         + SCORE.INTRA.REPUL SCORE.INTRA.REPUL.0
       LIG_TOT_CHG
     SITE_NLIPOC
     - exp SITE_NEG_CHG
       log LIG_NHBD
