CREATE TABLE table_12839 ("Name" CLOB, "No. Specimens" FLOAT, "Abbr." CLOB, "Country" CLOB, "City" CLOB)

In which city is MUB located?
SELECT "City" FROM table_12839 WHERE "Abbr." = 'mub'
SELECT "City" FROM "table_12839" WHERE "Abbr." = 'mub'