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:
| Name | Years of Operation | Location | Historical Photos | Year Clubhouse Constructed | Sign-in/Bicker | Year co-ed |
| --- | --- | --- | --- | --- | --- | --- |
| The Ivy Club | 1879–current | Prospect 43 Prospect Ave | link | 1897 | Bicker | 1991 |
| University Cottage Club | 1886–current | Prospect 51 Prospect Ave | link | 1906 | Bicker | 1986 |
| Tiger Inn | 1890–current | Prospect 48 Prospect Ave | link | 1895 | Bicker | 1991 |
| Cap and Gown Club | 1890–current | Prospect 61 Prospect Ave | link | 1908 | Bicker | 1970 |
| Colonial Club | 1891–current | Prospect 40 Prospect Ave | link | 1906 | Sign-in | 1969 |
| Cannon Club | 1895–1975, 2011–current | Prospect 21 Prospect Ave | link | 1910 | Bicker | 2011 |
| Elm Club | 1895–1973, 1978–1989 | Prospect 58 Prospect Ave | link | 1901 | Sign-in | 1970 |
| Campus Club | 1900–2005 | Prospect 5 Prospect Ave | link | 1909 | Sign-in | 1970 |
| Princeton Charter Club | 1901–current | Prospect 79 Prospect Ave | link | 1913 | Other | 1970 |
| Quadrangle Club | 1901–current | Prospect 33 Prospect Ave | link | 1916 | Sign-in | 1970 |
| Princeton Tower Club | 1902–current | Prospect 13 Prospect Ave | link | 1917 | Bicker | 1971 |
| Terrace Club | 1904–current | Wash 62 Washington Rd | link | 1920 (pre-existing building) | Sign-in | 1969 |
| Key and Seal Club | 1904–1968 | Prospect 83 Prospect Ave | link | 1925 | Bicker | Never |
| Dial Lodge | 1907–1988 | Prospect 26 Prospect Ave | link | 1917 | Sign-in | 1970 |
| Arch Club | 1911–1917 | Wash50 on Washington Rd | link | 1914 (pre-existing building) | Bicker | Never |
| Cloister Inn | 1912–1972, 1977–current | Prospect 65 Prospect Ave | link | 1924 | Sign-in | 1970 |
| Gateway Club | 1913–1937 | Wash 70 Washington Rd | link | 1927 (pre-existing building) | Bicker | Never |
| Court Club | 1921–1964 | Prospect 91 Prospect Ave | link | 1927 | Bicker | Never |
| Arbor Inn | 1923–1939 | Ivy 5 Ivy Lane | link | 1935 | Bicker | Never |
| Prospect Club | 1941–1959 | Wash 70 Washington Rd | link | 1927 (as Gateway Club) | Bicker | Never |
| Dial, Elm and Cannon (DEC) | 1990–1998 | Prospect 58 Prospect Ave | link | 1901 (as Elm Club) | Sign-in | 1990 |
Question:
Which Sign-in/Bicker is at of wash50 on washington rd?
Answer:
Bicker