Convert from caballeria [Cuba] to cuerda

Unit Definition (caballeria [Cuba])
The caballeria [Cuba] is a traditional unit of land area. In Cuba, the caballeria is a smaller unit equal to 33.162 acres or 13.420 hectares, but in the Dominican Republic it is a larger unit equal to 1200 tareas or about 75.4 hectares (186.5 acres).

Unit Definition (cuerda)
The Cuerda is a traditional unit of land area in Puerto Rico. The cuerda is equal to about 3930 square meters, 4700 square yards, 0.393 hectare, or 0.971 acre. Because the cuerda and the acre are so close to being equal, they are often treated informally as being equal. Mainlanders sometimes call the unit the "Spanish acre."