CREATE TABLE table_22966 ("Year" FLOAT, "Division" FLOAT, "League" CLOB, "Regular Season" CLOB, "Playoffs" CLOB, "U.S. Open Cup" CLOB, "Avg. Attendance" FLOAT)

What year at the US Open Cup quarterfinals, were the playoffs in the semifinals for the USL second division?
SELECT "Year" FROM table_22966 WHERE "League" = 'USL Second Division' AND "Playoffs" = 'Semifinals' AND "U.S. Open Cup" = 'Quarterfinals'
SELECT "Year" FROM "table_22966" WHERE "League" = 'USL Second Division' AND "Playoffs" = 'Semifinals' AND "U.S. Open Cup" = 'Quarterfinals'