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:
| Concessionaire | FA Division(s) | Gauge | Length, km | Takeover Date |
| --- | --- | --- | --- | --- |
| Ferroexpreso Pampeano | Roca, Sarmiento, Mitre | broad | 5094.0 | 1 Nov. 1991 |
| Nuevo Central Argentino | Mitre | broad | 4900.0 | 23 Dec. 1992 |
| Ferrosur Roca | Roca | broad | 3145.0 | 11 Mar. 1993 |
| Buenos Aires al Pacifico – San Martín | San Martín | broad | 5690.0 | 26 Aug. 1993 |
| Mesopotámico General Urquiza | Urquiza | standard | 2704.0 | 22 Oct. 1993 |
| Belgrano Cargas | Belgrano | metre | 9860.0 | 16 Nov. 1999 |
Question:
What was the guage of the concessionaire ferrosur roca?
Answer:
broad