CREATE TABLE table_31006 ("Rank" FLOAT, "Rider" TEXT, "Mon 30 May" TEXT, "Tues 31 May" TEXT, "Wed 1 June" TEXT, "Thurs 2 June" TEXT, "Fri 3 June" TEXT)

What's the Wednesday, June 1 practice time for the rider that did 21' 05.87 107.300mph on Thursday, June 2?
SELECT "Wed 1 June" FROM table_31006 WHERE "Thurs 2 June" = '21'' 05.87 107.300mph'
SELECT "Wed 1 June" FROM "table_31006" WHERE "Thurs 2 June" = '21\' 05.87 107.300mph'