CREATE TABLE table_45870 ("Res." TEXT, "Record" TEXT, "Opponent" TEXT, "Method" TEXT, "Event" TEXT, "Round" FLOAT, "Location" TEXT)

What is Method, when Location is 'Tokyo , Japan', and when Event is 'Rings: Millennium Combine 2'?
SELECT "Method" FROM table_45870 WHERE "Location" = 'tokyo , japan' AND "Event" = 'rings: millennium combine 2'
SELECT "Method" FROM "table_45870" WHERE "Event" = 'rings: millennium combine 2' AND "Location" = 'tokyo , japan'