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:
| School Year | Class A | Class AA | Class AAA | Class AAAA | Class AAAAA |
| --- | --- | --- | --- | --- | --- |
| 1988-89 | Plains | Shallowater | Quitman | Wichita Falls Hirschi | McAllen |
| 1989-90 | Plains | Shallowater | Orangefield | Wichita Falls Hirschi | Mission |
| 1990-91 | San Isidro | Quanah | Austin Lake Travis | Azle | Lubbock |
| 1991-92 | Sterling City | Shallowater | Devine | Wichita Falls | McAllen |
| 1992-93 | Sterling City | Little Elm | Crane | Wichita Falls | Lubbock |
| 1993-94 | Plains | Little Elm | Bridgeport | Buda Hays Consolidated | Alvin |
| 1994-95 | Henrietta Midway | Salado | Bridgeport | Azle | Sugar Land Elkins |
| 1995-96 | Rule | Salado | Shallowater | Longview Pine Tree | Mission |
| 1996-97 | Henrietta Midway | Shallowater | Bridgeport | Longview Pine Tree | Spring Westfield |
| 1997-98 | Henrietta Midway | Plains | Santa Rosa | Longview Pine Tree | Mission |
| 1998-99 | Henrietta Midway | Salado | Santa Rosa | Sulphur Springs | Klein |
| 1999-2000 | Valley View | Salado | Bridgeport | Azle | Klein |
| 2000-01 | Muenster | Salado | Bridgeport | Corpus Christi Flour Bluff | Edinburg North |
| 2001-02 | Muenster | Salado | Bridgeport | Corpus Christi Flour Bluff | Edinburg North |
| 2002-03 | Muenster | Salado | Bridgeport | Azle | Edinburg North |
| 2003-04 | Lindsay | Salado | Bridgeport | Medina Valley | Pearland |
| 2004-05 | Lindsay | Argyle | Bridgeport | Medina Valley | La Joya |
| 2005-06 | Garden City | Argyle | Bridgeport | Medina Valley | Klein |
| 2006-07 | Lindsay | Wichita Falls City View | Longview Spring Hill | Corpus Christi Flour Bluff | San Antonio O'Connor |
Question:
Name the class aa for 1998-99
Answer:
Salado