!BRIEF -i <input> [-o <output>] -smarts1 <smarts> -smarts2 <smarts> | -atom1 <name> -atom2 <name>
!PARAMETER -i
  !TYPE string
  !REQUIRED true
  !BRIEF Input file name
  !KEYLESS 1
!END
!PARAMETER -o
  !TYPE string
  !REQUIRED false
  !BRIEF Output file name
  !KEYLESS 2
!END
!PARAMETER -smarts1
  !TYPE string
  !BRIEF Smarts pattern to identify 1st atom
!END
!PARAMETER -smarts2
  !TYPE string
  !BRIEF Smarts pattern to identify 2nd atom
!END
!PARAMETER -atom1
  !TYPE string
  !BRIEF Name of 1st atom
!END
!PARAMETER -atom2
  !TYPE string
  !BRIEF Name of 2nd atom
!END
!PARAMETER -verbose
  !TYPE bool
  !REQUIRED false
  !DEFAULT false
  !BRIEF Print verbose output
!END
