Table: blue_jays_1990_games_2
Columns: date
opponent
score
loss
attendance
record

Question: Who lost the game with a record of 20-13?
SQL: SELECT "loss" FROM blue_jays_1990_games_2 WHERE "record" = '20-13'

Question: Who lost the game on May 28?
SQL: SELECT "loss" FROM blue_jays_1990_games_2 WHERE "date" = 'may 28'

Question: Who lost the game on May 26?
SQL: SELECT "loss" FROM blue_jays_1990_games_2 WHERE "date" = 'may 26'