array (
  'course-category' => 
  array (
    0 => 60,
    1 => 83,
    2 => 76,
    8 => 51,
    12 => 65,
    14 => 86,
    39 => 61,
    42 => 64,
    45 => 46,
    47 => 59,
    53 => 56,
    54 => 58,
    55 => 53,
    57 => 55,
    59 => 66,
    60 => 63,
    61 => 57,
    66 => 75,
    68 => 62,
    97 => 85,
    138 => 89,
    155 => 67,
  ),
  'course-city' => 
  array (
    0 => 48,
    2 => 71,
    64 => 72,
    96 => 92,
    321 => 70,
    372 => 91,
    516 => 77,
    713 => 90,
  ),
  'course-language' => 
  array (
    0 => 49,
  ),
  'course-type' => 
  array (
    0 => 73,
  ),
  'types' => 
  array (
    0 => 80,
    2 => 81,
  ),
)