Parameter_Qualifiers

/GROUP
  Identifies the immediately preceding item in the parameter as a
  group expression. If a test group expression comprises a list, use
  this qualifier after each item that designates a group.

  Because of the existence of the /GROUPS qualifier for this
  command, you cannot abbreviate the /GROUP qualifier.

/TEST_DESCRIPTION
  Identifies the immediately preceding item in the parameter as a
  test expression. This is the default.