question: What is the worst score for the dance that has Apolo Anton Ohno as the best dancer, and where his best score is larger than 30?
answer: SELECT SUM(worst_score) FROM table_name_23 WHERE best_dancer = "apolo anton ohno" AND best_score > 30
context: CREATE TABLE table_name_23 (worst_score INTEGER, best_dancer VARCHAR, best_score VARCHAR)