Table: iomm_tt_results_2
Columns: rank
rider
mon_30_may
tues_31_may
wed_1_june
thurs_2_june
fri_3_june

Question: What was the Friday June 3 practice time of the rider who did 20' 50.45 108.623mph on Thursday, June 2?
SQL: SELECT "fri_3_june" FROM iomm_tt_results_2 WHERE "thurs_2_june" = '20'' 50.45 108.623mph'

Question: What's the Wednesday, June 1 practice time for the rider that did 21' 05.87 107.300mph on Thursday, June 2?
SQL: SELECT "wed_1_june" FROM iomm_tt_results_2 WHERE "thurs_2_june" = '21'' 05.87 107.300mph'