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:
| Date | Tournament | Surface | Partnering | Opponents | Score |
| --- | --- | --- | --- | --- | --- |
| April 10, 2006 | Florianópolis , Brazil | Clay | Júlio Silva | Máximo González Sergio Roitman | 6–2, 3–6, [10–5] |
| March 5, 2007 | Salinas , Ecuador | Hard | Franco Ferreiro | Scott Lipsky David Martin | 7–5, 7–6 (11–9) |
| September 29, 2008 | Aracaju , Brazil | Clay | João Souza | Juan Martín Aranguren Franco Ferreiro | 6–4, 6–4 |
| November 3, 2008 | Guayaquil , Ecuador | Clay | Ricardo Hocevar | Sebastián Decoud Santiago Giraldo | 6–4, 6–4 |
| May 12, 2012 | Rio Quente , Brazil | Hard | Augusto Laranja | Guido Andreozzi Marcel Felder | 6–3, 6–3 |
Question:
Opponents of sebastián decoud santiago giraldo had what surface?
Answer:
Clay