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:
| Year | Men's singles | Women's singles | Men's doubles | Women's doubles | Mixed doubles |
| --- | --- | --- | --- | --- | --- |
| 1922 | Arthur Evans Snell | C. A. Boone | P. C. G. Campbell H. L. Lafferty | C. A. Boone R. George | P. C. G. Campbell Mrs. P. C. G. Campbell |
| 1923 | Cowan McTaggart | Marcelle Brunet | Cowan McTaggart G. H. Gorges | C. A. Boone R. George | G. H. Gorges Mrs. W. M. Stewart |
| 1924 | H. T. Douglas | Esme F. Coke | Arthur Evans Snell William M. Stewart | C. A. Boone Esme F. Coke | William M. Stewart Mrs. W. M. Stewart |
| 1925 | Cowan McTaggart | Esme F. Coke | Cowan McTaggart Jack Underhill | C. A. Boone Esme F. Coke | J. Kennedy Esme F. Coke |
| 1926 | C. Walter Aikman | Esme F. Coke | Reginald H. Hill Jack G. Muir | C. A. Boone Esme F. Coke | Jack G. Muir Eileen George |
| 1927 | C. Walter Aikman | Eileen George | Jack G. Muir Jack Underhill | H. Partington Esme F. Coke | C. Walter Aikman K. Archibald |
| 1928 | Jack Underhill | Esme F. Coke | G. Blackstock Cyril K. F. Andrews | C. A. Boone Esme F. Coke | C. Walter Aikman K. Archibald |
| 1929 | Jack Purcell | Esme F. Coke | Jack G. Muir Noel Radford | V. Mill Eileen George | Jack Underhill Eileen George |
| 1930 | Jack Purcell | Yvette Porteous | G. Blackstock Cyril K. F. Andrews | J. Woodman Eileen George | Jack Underhill Eileen George |
| 1931 | Jack M. Taylor | Ruth Robertson | G. Blackstock Cyril K. F. Andrews | Marjorie Barrow Margaret Delage | Jack Underhill Eileen George |
| 1932 | Jack Underhill | Anna Keir | Jack Underhill Noel Radford | Marjorie Barrow Margaret Delage | Noel Radford Anna Keir |
| 1933 | Doug Grant | Ruth Robertson | M. Burrows D. McKean | E. W. Whittington N. Crossley | George Goodwin Jr. Margaret Robertson |
| 1934 | Doug Grant | Anna Patrick | Bev Mitchell George Goodwin Jr. | Marjorie Barrow Margaret Delage | Dick Birch Anna Patrick |
| 1935 | Rod G. Phelan | Margaret Taylor | Jack Sibbald L. Coles | Margaret Robertson Ruth Robertson | George Goodwin Jr. Margaret Robertson |
| 1936 | Doug Grant | Dorothy Walton | E. Laney Jack Underhill | Margaret Robertson Ruth Robertson | Dick Birch Anna Patrick |
| 1937 | Dick Birch | Anna Patrick | Jack Sibbald Joe Zaharko | Anna Patrick Vess O'Shea | Dick Birch Anna Patrick |
| 1938 | John Samis | Dorothy Walton | Jack Sibbald Rod G. Phelan | Margaret Taylor Vess O'Shea | Len Schlemm N. Bonnar |
| 1939 | Dick Birch | Marjorie Delaney | Jack Sibbald Rod G. Phelan | Margaret Taylor Vess O'Shea | Dick Birch Vess O'Shea |
| 1940 | Jim Snyder | Dorothy Walton | Jim Snyder Paul Snyder | Dorothy Walton Evelyn Effnert | Dick Birch Vess O'Shea |
| 1941/46 | no competition | no competition | no competition | no competition | no competition |
| 1947 | John Samis | Claire Lovett | Jack Underhill John Samis | Claire Lovett N. Ma | Dick Birch Barb Ince |
| 1948 | Dick Birch | Claire Lovett | Frederick Hughes (Ted) Pollock Roy G. Smith | M. Armstrong Ethel Marshall | Dick Birch Ev Roberts |
| 1949 | John Samis | Marjorie Mapp | T. Darryl Thompson K. Meredith | Claire Lovett Jean Bardsley | T. Darryl Thompson Jean Bardsley |
| 1950 | Alan Williams | Lois Reid | Grant Henry Dorren Clapperton | Ev Roberts Joan Hennessy | Dick Birch Ev Roberts |
| 1951 | T. Darryl Thompson | Kay Ottonson | Dick Birch Gordon Simpson | Lois Reid Jean Bardsley | T. Darryl Thompson Jean Bardsley |
| 1952 | Donald Smythe | Marjorie Mapp | Donald Smythe Budd Porter | Barb Ince Joan Warren | Budd Porter Ethel Marshall |
| 1953 | Donald Smythe | Marjory Shedd | Donald Smythe Budd Porter | Lois Reid Jean Bardsley | Dick Birch Barb Ince |
| 1954 | Donald Smythe | Marjory Shedd | Donald Smythe William Purcell | Marjory Shedd Joan Hennessy | T. Darryl Thompson Jean Bardsley |
| 1955 | Donald Smythe | Jean Waring | T. Darryl Thompson Bert Fergus | Marjory Shedd Joan Hennessy | T. Darryl Thompson Jean Bardsley |
| 1956 | David McTaggart | Jean Miller | Beverley Westcott William Purcell | Marjory Shedd Joan Hennessy | William Purcell Marjory Shedd |
Question:
Who played women's singles in 1933?
Answer:
Ruth Robertson