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:
| Year | NW Rank | Venue | Opp Rank | Opponent | Score | W/L | Round | Notes |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1984 | -- | Away | -- | Nebraska-Omaha | 15-28 | L | 1st Round |  |
| 1989 | 18 | Away | -- | Pittsburg State | 7-28 | L | 1st Round |  |
| 1996 | 2 | Away | -- | Nebraska-Omaha | 22-21 | W | 1st Round |  |
| 1996 | 2 | Away | -- | Northern Colorado | 26-27 | L | Quarterfinal |  |
| 1997 | 3 | Maryville | 16 | North Dakota State | 39-28 | W | 1st Round |  |
| 1997 | 3 | Maryville | -- | Northern Colorado | 19-35 | L | Quarterfinal |  |
| 1998 | 2 | Maryville | 16 | Nebraska-Omaha | 28-14 | W | 1st Round |  |
| 1998 | 2 | Maryville | 6 | Northern Colorado | 42-17 | W | Quarterfinal |  |
| 1998 | 2 | Maryville | 11 | Texas A&M-Kingsville | 49-34 | W | Semifinal |  |
| 1998 | 2 | Braly Stadium | 3 | Carson-Newman | 24-6 | W | Finals |  |
| 1999 | 4 | Maryville | 9 | North Dakota State | 20-13 | W | 1st Round |  |
| 1999 | 4 | Maryville | 3 | Northern Colorado | 43-35 | W | Quarterfinal |  |
| 1999 | 4 | Maryville | -- | Indiana University (Pa.) | 20-12 | W | Semifinal |  |
| 1999 | 4 | Braly Stadium | 1 | Carson-Newman | 58-52 | W | Finals |  |
| 2000 | 1 | Maryville | 5 | North Dakota State | 17-13 | L | 1st Round |  |
| 2002 | 4 | Maryville | 11 | Minnesota-Duluth | 45-41 | W | 2nd Round (first round bye) |  |
| 2002 | 4 | Maryville | 7 | Northern Colorado | 12-23 | L | Quarterfinal |  |
| 2004 | 4 | Maryville | 6 | Texas A&M-Kingsville | 34-14 | W | 1st Round |  |
| 2004 | 4 | Away | 1 | Pittsburg State | 36-50 | L | Quarterfinal |  |
| 2005 | 21 | Away | 29 | Angelo State | 45-14 | W | 1st Round |  |
| 2005 | 21 | Away | 12 | Washburn | 42-32 | W | 2nd Round |  |
| 2005 | 21 | Away | 23 | Pittsburg State | 21-10 | W | Quarterfinal |  |
| 2005 | 21 | Away | 13 | North Alabama | 25-24 | W | Semifinal |  |
| 2005 | 21 | Braly Stadium | 1 | Grand Valley State | 17-21 | L | Finals |  |
| 2006 | 2 | Maryville | 18 | Midwestern State | 27-0 | W | 2nd Round (first round bye) |  |
| 2006 | 2 | Maryville | 8 | Chadron State | 28-21 | W | Quarterfinal |  |
| 2006 | 2 | Maryville | 6 | Bloomsburg | 33-3 | W | Semifinal |  |
| 2006 | 2 | Braly Stadium | 1 | Grand Valley State | 14-17 | L | Finals |  |
| 2007 | 5 | Maryville | 4 | West Texas A&M | 56-28 | W | 2nd Round (first round bye) |  |
| 2007 | 5 | Away | 2 | Chadron State | 26-13 | W | Quarterfinal |  |
| 2007 | 5 | Maryville | 1 | Grand Valley State | 34-16 | W | Semifinal |  |
| 2007 | 5 | Braly Stadium | 8 | Valdsota State | 20-25 | L | Finals |  |
| 2008 | 3 | Maryville | 10 | Pittsburg State | 38-35 | W | 2nd Round (first round bye) |  |
| 2008 | 3 | Away | 2 | Abilene Christian | 45-36 | W | Quarterfinal |  |
| 2008 | 3 | Away | 5 | North Alabama | 41-7 | W | Semifinal |  |
| 2008 | 3 | Braly Stadium | 6 | Minnesota-Duluth | 14-21 | L | Finals |  |
| 2009 | 2 | Maryville | 16 | Abilene Christian | 35-10 | W | 2nd Round (first round bye) |  |
| 2009 | 2 | Away | 1 | Central Washington | 21-20 | W | Quarterfinal |  |
| 2009 | 2 | Maryville | 20 | California (Pennsylvnania) | 56-31 | W | Semifinal |  |
| 2009 | 2 | Braly Stadium | 3 | Grand Valley State | 30-23 | W | Finals |  |
| 2010 | 3 | Maryville | - | Missouri Western | 28-24 | W | 1st Round | Northwest trailed by 17 at half—it largest deficit that it had come back from. |
| 2010 | 3 | Away | 4 | Texas A&M-Kingsville | 35-31 | W | 2nd Round | Texas had defeated Northwest on opening day. Northwest won with 17 seconds remaining on Blake Bolles to Josh Baker pass. |
| 2010 | 3 | Maryville | 7 | Central Missouri | 37-20 | W | Quarterfinal | Northwest had won earlier game in Warrensburg on a field goal as time expired that was attended by 13,096—the biggest crowd at MIAA venue in history. |
| 2010 | 3 | Away | 4 | Texas A&M-Kingsville | 35-31 | W | 2nd Round | Texas had defeated Northwest on opening day. Northwest won with 17 seconds remaining on Blake Bolles to Josh Baker pass. |
| 2010 | 3 | Away | 1 | Minnesota-Duluth | 13-17 | L | Semifinal | Played during snowstorm that collapsed the Hubert H. Humphrey Metrodome roof. Temperatures were in the single digits and the wind blew at 30 mph. Northwest led most of the game until 4:12 left in the fourth quarter. |
| 2011 | 7 | Away | 17 | Missouri Western | 35-29 | W | 1st Round | Northwest lost earlier game in St. Joseph 31-28. Northwest rallied in second half with 21 unanswered points. Northwest had been down 16-0 in the first four minutes of the game. |
| 2011 | 7 | Away | 1 | Midwestern State | 38-31 | W | 2nd Round (1 OT) | Midwest was ranked #1 going into the game and was one of only 3 undefeated D2 teams. Midwest led 28-10 in the second quarter - the biggest Northwest deficit since it began its dominance in 2004. The game was played in 30 mph winds. Midwest marched to the Bearcat 9 with 10 seconds remaining. Greg Saladino shanked a potential game winning field goal throwing it into overtime. Bearcat quarterback Trevor Adams hit Kyle Kilgore on a 13-yard wheel route for the overtime's only score by either team. |
| 2011 | 7 | Away | 6 | Pittsburg State | 16-41 | L | Quarterfinal | Pittsburg had defeated the Bearcats earlier in the season in a game that broke Northwest's record 49 straight MIAA victory record (a game in which the Bearcats had led 21-0) and this was a rematch of MIAA teams. The game was played in a driving rain. Northwest led 10-0 at the end of the first quarter and it was tied at half. Pittsburg scored 31 points in second half. |
| 2012 | 10 | Maryville | 9 | Harding University | 35-0 | W | First Round |  |
| 2012 | 10 | Away | 2 | Minnesota State-Mankato | 35-38 (2OT) | L | Second Round | Northwest was down 0-21 but scored 28 points in the second half to force two overtimes in which Northwest ultimately lost after Mankato turned an intercepted pass into a field goal. |
| 2013 | 2 | Maryville | 5 | Minnesota-Duluth | 45-21 | W | Second Round (first round bye) |  |
| 2013 | 2 | Maryville | 5 | Minnesota-Duluth | 59-21 | W | Second Round (first round bye) |  |
| 2013 | 2 | Maryville | 12 | Minnesota-St. Cloud | 59-21 | W | Quarterfinal |  |
| 2013 | 2 | Maryville | 22 | Grand Valley State | 27-13 | W | Semifinal | Game was attend by Missouri Governor Jay Nixon who gave a pep talk to team at the beginning. |
| 2013 | 2 | Braly Stadium | 13 | Lenoir–Rhyne | 43-28 | W | Final | Lenoir set a record for most offensive rushing yards in any NCAA division in one season however it was held in check by Northwest which jumped to a 17-0 lead in the first quarter. The game was the last Division II championship at Braly Stadium. Northwest's home conference MIAA won a bid the week before the game to host future championships 100 miles from Maryville in Kansas City at Sporting Park . |
Question:
what is the only opponent in 1984?
Answer:
Nebraska-Omaha