SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier bf_ngram_lowcard_test
   Function like (children 1)
    ExpressionList (children 2)
     Identifier lc_fixed
     Literal \'K3ZZZZZZ\'
   Set
