SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function arrayEnumerateUniq (children 1)
     ExpressionList (children 1)
      Literal Array_[Array_[\'a\', \'b\', \'a\'], Array_[\'a\', \'b\', \'a\'], Array_[\'c\']]