Question: What contestant had a starting BMI of 42.2?
SQL: SELECT "Contestant" FROM "2-1151047-4" WHERE "Start BMI" = 42.2;

Question: What is the recent BMI on season 8 for the person who's BMI started under 46.3?
SQL: SELECT "Recent BMI" FROM "2-1151047-4" WHERE "Start BMI" < 46.3 AND "season" = 'season 8';