Question: Which college's overall number is more than 158 when Travian Robertson is the name?
SQL: SELECT "College" FROM "2-15198842-47" WHERE "Overall" > 158.0 AND "Name" = 'Travian Robertson';

Question: Which round's name is Jonathan Massaquoi?
SQL: SELECT "Round" FROM "2-15198842-47" WHERE "Name" = 'Jonathan Massaquoi';

Question: What is the mean round number for center position when the pick number is less than 23?
SQL: SELECT AVG("Round") FROM "2-15198842-47" WHERE "Position" = 'center' AND "Pick #" < 23.0;