user: Question: What is the rank of the arch with a length in meters of 75/55?
Columns: ['Rank', 'Name', 'Location', 'Length ( m )', 'Length ( ft )']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1', 'Xian Ren Qiao (Fairy Bridge)', 'Guangxi , China', '121 (+/-5)', '400 (+/-15)']
SQL:

assistant: SELECT "Rank" FROM "Table" WHERE "Length ( m )" = '75/55';