assi 
   (( segid "   C" and resid 180  and name  O6  ))
   (( segid "   A" and resid 146  and name  HN  ))

      4.000     2.200     1.500
 assi 
   (( segid "   C" and resid 180  and name  O6  ))
   (( segid "   A" and resid 147  and name  HN  ))

      4.000     2.200     1.500
 assi 
   (( segid "   A" and resid 17   and name  HG  ))
   (  segid "   B" and resid 173  )

      4.000     2.200     1.500