Spreadsheet: 468161d1467146916-how-to-look-up-column-and-row-headings-that-match-table-value-sample
Sheet: Schedule-per-activity

 | Activity | 16:45 - 17:00 | 17:00-17:15 | 17:15 - 17:30 | 17:30-17:45 | 17:45 - 18:00 | 18:00 - 18:15 | 18:15 - 18:30 | 18:30 - 18:45
 | Football | 1 team | 17 team | 5 team | 21 team | 6 team | 22 team | 7 team | 23 team
 | Football | 2 team | 18 team | 8 team | 24 team | 11 team | 27 team | 10 team | 26 team
 | Football | 3 team | 19 team | 9 team | 25 team | 12 team | 28 team | 13 team | 29 team
 | Football | 4 team | 20 team | 14 team | 30 team | 15 team | 31 team | 16 team | 32 team
 | Cube | 5 team | 21 team | 1 team | 17 team | 3 team | 19 team | 2 team | 18 team
 | Cube | 6 team | 22 team | 10 team | 26 team | 9 team | 25 team | 4 team | 20 team
 | Cube | 7 team | 23 team | 12 team | 28 team | 14 team | 30 team | 11 team | 27 team
 | Cube | 8 team | 24 team | 13 team | 29 team | 16 team | 32 team | 15 team | 31 team
 | Tie game | 9 team | 25 team | 2 team | 18 team | 1 team | 17 team | 3 team | 19 team
 | Tie game | 10 team | 26 team | 6 team | 22 team | 4 team | 20 team | 5 team | 21 team
 | Tie game | 11 team | 27 team | 15 team | 31 team | 7 team | 23 team | 8 team | 24 team
 | Tie game | 12 team | 28 team | 16 team | 32 team | 13 team | 29 team | 14 team | 30 team
 | Puzzle | 13 team | 29 team | 3 team | 19 team | 2 team | 18 team | 1 team | 17 team
 | Puzzle | 14 team | 30 team | 4 team | 20 team | 5 team | 21 team | 6 team | 22 team
 | Puzzle | 15 team | 31 team | 7 team | 23 team | 8 team | 24 team | 9 team | 25 team
 | Puzzle | 16 team | 32 team | 11 team | 27 team | 10 team | 26 team | 12 team | 28 team
 | Activity | 19:15 - 19:30 | 19:30 - 19:45 | 19:45 - 20:00 | 20:00-20:15 | 20:15-20:30 | 20:30-20:45 | 20:45-21:00 | 21:00-21:15
 | SUP | 1 team | 17 team | 2 team | 18 team | 3 team | 19 team | 4 team | 20 team
 | SUP | 8 team | 24 team | 5 team | 21 team | 6 team | 22 team | 7 team | 23 team
 | SUP | 12 team | 28 team | 9 team | 25 team | 10 team | 26 team | 11 team | 27 team
 | SUP | 16 team | 32 team | 13 team | 29 team | 14 team | 30 team | 15 team | 31 team
 | [NAME] | 5 team | 21 team | 6 team | 22 team | 7 team | 23 team | 8 team | 24 team
 | [NAME] | 4 team | 20 team | 1 team | 17 team | 2 team | 18 team | 3 team | 19 team
 | [NAME] | 14 team | 30 team | 11 team | 27 team | 9 team | 25 team | 10 team | 26 team
 | [NAME] | 15 team | 31 team | 16 team | 32 team | 12 team | 28 team | 13 team | 29 team
 | Catapult | 9 team | 25 team | 10 team | 26 team | 11 team | 27 team | 12 team | 28 team
 | Catapult | 3 team | 19 team | 4 team | 20 team | 1 team | 17 team | 2 team | 18 team
 | Catapult | 6 team | 22 team | 8 team | 24 team | 13 team | 29 team | 5 team | 21 team
 | Catapult | 7 team | 23 team | 15 team | 31 team | 16 team | 32 team | 14 team | 30 team
 | Disk golf | 13 team | 29 team | 14 team | 30 team | 15 team | 31 team | 16 team | 32 team
 | Disk golf | 2 team | 18 team | 3 team | 19 team | 4 team | 20 team | 1 team | 17 team
 | Disk golf | 10 team | 26 team | 7 team | 23 team | 5 team | 21 team | 6 team | 22 team
 | Disk golf | 11 team | 27 team | 12 team | 28 team | 8 team | 24 team | 9 team | 25 team