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:
| Player | Nationality | Position | Years for Jazz | School/Club Team |
| --- | --- | --- | --- | --- |
| Scott Padgett | United States | Forward | 1999-2003 | Kentucky |
| Milt Palacio | United States | Guard | 1999-2003 | Colorado State |
| Walter Palmer | United States | Center | 1990-91 | Dartmouth |
| Billy Paultz | United States | Center | 1984-85 | St. John's |
| Aleksandar Pavlović | Serbia | Forward | 2003-04 | KK Budućnost ( Serbia and Montenegro ) |
| Olden Polynice | Haiti | Forward-Center | 1999-2001 | Virginia |
| Ben Poquette | United States | Forward-Center | 1979-83 | Central Michigan |
| Roger Powell | United States | Guard-Forward | 2006-07 | Illinois |
| Ronnie Price | United States | Guard | 2007-11 | Utah Valley |
Question:
Which position has a Nationality of united states, and a Player of roger powell?
Answer:
Guard-Forward