Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Railway | Builder | Built | Wheels | Location | ObjectNumber |
| --- | --- | --- | --- | --- | --- |
| C&SLR | Mather & Platt / Beyer, Peacock | 1890.0 | Bo | LTMuseum | 1923-301 |
| Waterloo & City | Siemens Brothers & Co | 1898.0 | Bo | Shildon | 1978-7003 |
| NER | BTH | 1904.0 | Bo-Bo | Shildon | 1975-7022 |
| NSR | NSR / Thomas Bolton | 1917.0 | Bo | York | 1978-7004 |
| BR | BR Gorton | 1951.0 | Bo-Bo | York | 1978-7005 |
| BR | BR Doncaster | 1958.0 | Bo-Bo | Shildon | 1978-7006 |
| BR | North British | 1960.0 | Bo-Bo | Barrow Hill | 1979-7001 |
| BR | BREL Crewe | 1974.0 | Bo-Bo | York | 2005-7698 |
Question:
Which Wheels has Built smaller than 1958, a Location of york, and a Railway of nsr?
Answer:
Bo