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:
| Number | Name | Builder | Type | Date | Works number |
| --- | --- | --- | --- | --- | --- |
| 1.0 | Gordon | Avonside Engine Company | 4-6-0 | Aug 1870 | 799 |
| 2.0 | A.R. McMaster | Avonside Engine Company | 4-4-0 | Aug 1870 | 800 |
| 3.0 | Kincardine | Avonside Engine Company | 4-4-0 | September 1870 | 809 |
| 4.0 | R. Walker & Sons | Avonside Engine Company | 4-4-0 | May 1871 | 838 |
| 5.0 | Albion | Avonside Engine Company | 4-4-0 | July 1871 | 839 |
| 6.0 | Rice Lewis & Son | Avonside Engine Company | 4-4-0 | Mid 1871 | 840 |
| 7.0 | Caledon | Avonside Engine Company | 0-6-6-0 Fairlie type | Late 1872 | 862 & 863 |
| 8.0 | Mono | Avonside Engine Company | 4-6-0 | Late 1871 | 866 |
| 9.0 | Toronto | Baldwin Locomotive Works | 2-6-0 | September 1871 | 2534 |
| 10.0 | Amaranth | Baldwin Locomotive Works | 2-6-0 | September 1871 | 2538 |
| 11.0 | Holland | Avonside Engine Company | 4-6-0 | Early 1873 | one of 935-939 |
| 12.0 | Sydenham | Avonside Engine Company | 4-6-0 | Early 1873 | one of 935-939 |
| 13.0 | Artemisia | Avonside Engine Company | 4-6-0 | Early 1873 | one of 935-939 |
| 14.0 | Owen Sound | Avonside Engine Company | 4-6-0 | Early 1873 | one of 931,932,933,or 934 |
| 15.0 | Mount Forest | Baldwin Locomotive Works | 2-8-0 | February 1874 | 3524 |
| 16.0 | Orangeville | Baldwin Locomotive Works | 2-8-0 | February 1874 | 3525 |
| 17.0 | Sarawak | Baldwin Locomotive Works | 2-8-0 | April 1874 | 3551 |
| 18.0 | Melancthon | Baldwin Locomotive Works | 2-8-0 | April 1874 | 3552 |
| 19.0 | Howick | Baldwin Locomotive Works | 2-8-0 | September 1874 | 3636 |
| 20.0 | Culross | Baldwin Locomotive Works | 2-8-0 | September 1874 | 3640 |
Question:
In early 1873, Owen sound had what works number?
Answer:
one of 931,932,933,or 934