Question: What is VfB Stuttgart II Team's Stadiuim?
SQL: SELECT "Stadium" FROM "2-17085981-1" WHERE "Team" = 'VfB Stuttgart II';

Question: What is the Capacity of Ernst-Abbe-Sportfeld?
SQL: SELECT "Capacity" FROM "2-17085981-1" WHERE "Stadium" = 'Ernst-Abbe-Sportfeld';

Question: What is the Capacity of the Rainer Kraft's Stadium?
SQL: SELECT AVG("Capacity") FROM "2-17085981-1" WHERE "Head Coach" = 'Rainer Kraft';