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 | Time | Opponent# | Rank # | Result | Attendance |
| --- | --- | --- | --- | --- | --- |
| 09/10/1988 | 9:00pm | 9 Michigan | 13 | W19-17 | 59,075 |
| 09/17/1988 | 12:00pm | at Michigan State | 8 | W20-3 | 77,472 |
| 09/24/1988 | 12:00pm | Purdue | 8 | W52-7 | 59,075 |
| 10/01/1988 | 7:00pm | Stanford | 5 | W42-14 | 59,075 |
| 10/08/1988 | 7:00pm | at Pittsburgh | 5 | W30-20 | 56,500 |
| 10/15/1988 | 2:30pm | 1 Miami | 4 | W31-30 | 59,075 |
| 10/22/1988 | 12:00pm | Air Force | 2 | W41-13 | 59,075 |
| 10/29/1988 | 12:00pm | vs. Navy | 2 | W22-7 | 54,929 |
| 11/05/1988 | 12:00pm | Rice | 1 | W54-11 | 59,075 |
| 11/19/1988 | 12:00pm | Penn St. | 1 | W21-3 | 59,075 |
| 11/25/1988 | 3:30pm | at 2 USC | 1 | W27-10 | 93,829 |
| 01/02/1989 | 4:30pm | vs. 3 West Virginia | 1 | W34-21 | 74,911 |
| #Rankings from AP. All times are in Eastern Time . | #Rankings from AP. All times are in Eastern Time . | #Rankings from AP. All times are in Eastern Time . | #Rankings from AP. All times are in Eastern Time . | #Rankings from AP. All times are in Eastern Time . | #Rankings from AP. All times are in Eastern Time . |
Question:
What was the rank# of the opponent when the result of the game was w42-14?
Answer:
5.0