user: Question: For the Crew with Year 9 2nd Quads of STM, Year 9 1st Quads of SOM, and a Year 8 3rd Quads of STA what was the Year 8 1st Quads?
Columns: ['Crew', 'Year 10 1st Quad', 'Year 10 2nd Quad', 'Year 10 3rd Quad', 'Year 10 4th Quad', 'Year 10 Single Scull', 'Year 9 1st Quad', 'Year 9 2nd Quad', 'Year 9 3rd Quad', 'Year 9 4th Quad', 'Year 9 Single Scull', 'Year 8 1st Quad', 'Year 8 2nd Quad', 'Year 8 3rd Quad', 'Year 8 4th Quad', 'Year 8 Single Scull']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1999.0, 'STM', 'STM', 'STM', 'SOM', 'STM', 'BSHS', 'STH', 'STM', 'STM', 'SOM', 'STM', 'STM', 'STU', 'STU', 'STM']
SQL:

assistant: SELECT "Year 8 1st Quad" FROM "Table" WHERE "Year 9 2nd Quad" = 'STM' AND "Year 9 1st Quad" = 'SOM' AND "Year 8 3rd Quad" = 'STA';