SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function arrayMap (children 1)
     ExpressionList (children 2)
      Function lambda (children 1)
       ExpressionList (children 2)
        Function tuple (children 1)
         ExpressionList (children 1)
          Identifier x
        Function arrayMap (children 1)
         ExpressionList (children 2)
          Function lambda (children 1)
           ExpressionList (children 2)
            Function tuple (children 1)
             ExpressionList (children 1)
              Identifier x
            Function tupleElement (children 1)
             ExpressionList (children 2)
              Identifier x
              Literal UInt64_1
          Function array (children 1)
           ExpressionList (children 2)
            Literal Tuple_(UInt64_1, UInt64_1)
            Literal Tuple_(UInt64_2, UInt64_2)
      Function array (children 1)
       ExpressionList (children 2)
        Literal Tuple_(UInt64_3, UInt64_3)
        Literal Tuple_(UInt64_4, UInt64_4)
