NAF - There are C connected with two oxygens by single bonds
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with Garib
NEV (coord) - It seems that N11 should be tetrahedral (sp3)
NIV (coord)- Nevirapine, triangle, check it, Check N if they are sp3 or sp2
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+OK  NIU - 7 member ring and rubbish
+OK  NOD - problem with 7 or 9 member rings
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NMC - triangle
---   NO1 - Problem. N should have valency 2. Somehow it should be treated

      NVA - it is peptide

Many repeats???

--- MAny molecules like O2, NO etc should have full description

      OIC - pro like amino acid L-peptide

      OIP - DNA

      OLE - amino acid from N terminus

      ONL - amino acid
      OPR - amino acid from C terminus
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OVA - trianlgle
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