What is the total number of tiers for the postseason of semifinalist?
CREATE TABLE table_name_45 (tier INTEGER, postseason VARCHAR)
SELECT SUM(tier) FROM table_name_45 WHERE postseason = "semifinalist"
### Context: CREATE TABLE table_name_45 (tier INTEGER, postseason VARCHAR) ### Question: What is the total number of tiers for the postseason of semifinalist? ### Answer: SELECT SUM(tier) FROM table_name_45 WHERE postseason = "semifinalist"